The 12 Conditions for Effective Teams

Part 3 of a series that explores the effectiveness of individuals, teams, and organizations

The factors that drive team performance are very well researched. This post is based on Richard J. Hackman’s research on team performance.   Mr. Hackman has been a Harvard professor who specialized in organizational psychology.[1]He is recognized today as the most authoritative voice on the topic of team performance. He devoted his academic life to the research of teams. In his 2002 book “Leading Teams” he came up with a list of five conditions that foster team performance. I took the liberty of re-ordering and often re-naming these factors for better understandability.[2]

This re-ordered model of team performance is based on a total of twelve conditions. Nine conditions internal to a team, and three conditions external to it. This effectiveness model aims to be collectively exhaustive and mutually exclusive.

Screenshot 2018-09-06 12.59.18.png

All the twelve factors listed do matter, for any team. There is no weighting given with this model. Weightings depend on the specific performance context the team is in at a certain point in time.

The twelve factors are no menu card. You can’t choose to run a team by, say “a compelling direction “and “small size” only while neglecting the other factors and still expect high performance. In general, all 12 conditions must be there for a team to achieve great things. They are reinforcing one another.

Meaning and Spirit – the Internal Conditions of Effective Teams

The internal conditions are those that held within the team. Some of those might be set externally at the start of the team effort, but once the team effort starts they are the essence of what this team is all about. They become internalized into the fabric of the team.

There are two categories of internal conditions: Meaning and Spirit. The five conditions subsumed under Meaning describe what the team is all about:  The direction of the teams work, the tasks that they are doing, team size, the scope of the effort and its composition and stability. Meaningful work engages people. Meaning does describe why something is to done and what people do. It’s a reason to climb up to a summit and a clear view of the mountain. To be clear on the meaning to a team is a good start to pay off the motivational debt of teams.

The Spirit of a team is describing how the team approaches their work: The impact people they feel their work has, their level of aspiration to do great things, the way they think about their ability to speak up, and the level of transparency and trust.

Let’s start with exploring the five factors that make up teams Meaning first.

Condition 1: A Compelling Direction

A compelling direction has several functions in a team setting:

  • Harnessing the team to the targets of the organization
  • A source of motivation
  • Provide direction for decisions to be made
  • Align the actions of all team members towards the common goal

Setting a compelling direction is more than goal setting. To set goals is a classic, often useful management practice. Goal setting is the art of laying out clear goals, for example by using the SMART criteria that decrees that targets should be Specific, Measurable, Attainable, Relevant and Time-based. Setting a goal implies setting an end-point, a definite location that to achieve.

However, the higher the performance aspiration of a team, the less traditional goal setting will suffice. First, in complex environments where solutions cannot be known at the start of the effort, being too SMART in goal setting, will be limiting for the team. If the problem is complex, it is not wise to be too specific. Goals need to be described on a high level and vague level. Being too specific will determine outcomes in ways that are hard to anticipate before the team gets its hands dirty on the complex matter itself. Second, for a team, it is often crucial to figure things out for themselves. It is tough for any team member to latch her intrinsic drive on to the team’s mission if too much is already defined. By supplying overly detailed goal criteria, the freedom of the team to do what it deems to be best is limited.

It is a better idea to get a team to work itself into the subject matter – to advance in a given general direction. It will find out new things and will over time and decide then what to go for and where to end up. For teams, a direction works better than specific goals.

Let me give you a prime example of how to set directions, but not goals.

Mission Type Tactics

Providing a direction is nothing else than giving a mission. This style of command is known as “Mission Type Command” in military command theory. Its origin is the German “Auftragstaktik” is attributed to the Chief of Staff of the Prussian Army Erich von Moltke. Auftragstaktik and has been a core element of German military thinking, and modern military tactics, ever since.[3]

In mission-type tactics, a subordinate commander is assigned a mission, the resources available to attain it, and a time frame. The subordinate leader then implements the order independently. The subordinate leader is given, to a large extent, the planning initiative and freedom in the execution. Thus, a high degree of flexibility at the operational and tactical levels of command is achieved. Mission-type orders free the more senior leadership from tactical details.[4]

The opposite of Mission type tactic is the Command tactic. People using command tactics give exact orders, SMART orders. Maybe too SMART.  To manage teams effectively, managers need to learn a new trick and refrain from providing precise orders. Instead, they need to be vaguer. They need to point in a direction. Now, this might seem like an ideal excuse to give sloppy orders: “I do not need to be exact in what I am ordering you – go find it out yourself.” Sloppy orders would leave the team wondering what to do, wasting time and possibly never get anywhere.

To specify missions and not end up issuing sloppy orders is hard. Giving an excellent mission to the team requires much thoughtfulness on the part of the one defining the mission. Here is some guidance:

  • Describe the mission as an intent, not end-point[5]
  • Give boundary conditions, that act as guard rails
  • Refrain from determining the ways of getting towards the intent

Mastering the art of mission command might be one of the most crucial things that distinguish an ordinary boss from a great leader, both of military as of business organizations. It takes much humility to accept a variation in methods and a variation in outcomes.[6]  It takes the willingness to accept the risk that one’s intent is misinterpreted. It takes willpower to refrain from being too explicit and not declare once own perception to be the truth. There is a lot of doubt and uncertainty involved in trusting other people to do your bidding to their best of abilities.

These are all reasons why mission-type tactics are seldom used in traditional businesses. Mission type tactics are best used in environments of uncertainty, complex situations where swift action based on local knowledge on the spot of the action is crucial. Alas, traditional businesses and management practices are aiming at eliminating uncertainty, to fence it in, to produce predictable, constant outputs. Things that worked fine in the industrial revolution, but that are deeply problematic for many challenges posed by the digital age.

There is another snatch: Mission-type tactics alone do not work well if used in a traditional business environment. To understand a direction, the intent and not the end-point, in spirit and not only to the letter, the team needs to have a splendid view of the organizations need, with all its various constituents who are invested in or impacted by the team’s efforts. Even more than a genuine understanding of the situation, the team needs to have a view on the dynamics of the situation: Is the stated intent really what a constituent wants? The more complex and dynamic the situation is, the more the team needs to develop, maintain and test a hypothesis how the intent of the organization might be changing over the course of the team effort. This level of visibility needs much more close bonds between people and a level of transparency that is hard to find in most companies. It requires a supportive organizational environment geared towards shaping intense personal relationships and a culture of organizational transparency.

Who set’s the Teams Direction?

The first thing is to be clear about is who is setting the overall direction of the team. This is usually not the teams’ job, but the person or group that want something to be done. The need to get something done is, of course, the very reason why a team exists. A team is a tool at the hands of someone or a group to get something done.

There is just one exception to that rule: In a self-governing team, a form of organization used in highly innovative or egalitarian organizations, which are not bound to conventional hierarchy, a team may choose its own direction. An example is a community of interest, which can work even in hierarchical business, where co-workers are forming teams on their own initiative and waiting for followers to “vote with their feet” and self-assigning them to a cause. While this form of a team is still somewhat exotic in a business environment, its results are often attractive. Organizations employing those teams at scale are Google, Netflix, IDEO, Haier, Procter & Gamble, Unilever, Microsoft, and many others. For the overwhelming majority of businesses, most goals need to be set by the hierarchy in a way to serve its needs.

A Mission does not need to be Inspiring

While it is difficult to set a good mission, it is still not enough. The mission needs to be compelling, too. Nowadays we tend to understand the word “compelling” synonymous with adjectives like inspiring, purposeful, or motivating. However, compelling can as well be connected with attributes like coercive, forceful, or void of alternatives. A compelling direction may not at all be a positive one. Take for example the need to close some operations and lay-off people. This can be a compelling target, too, because management has decreed this, and might frame it as a cut necessary for the survival of the whole organization. Most of the time, we tend to think of teams and business of being a growth story, forward-thinking, providing opportunities and winning. This is quite silly, as leading organizations and teams means not only to be starting things but to be ending things, too. An inspiring mission is excellent and much preferable – but a sincere one will do just fine.

But if the direction of a team is not inspiring, how can a team member ever give her or his best? She might be compelled or even coerced to do things, but surely her intrinsic motivation will take a hit and limit her performance, right? Perfectly right, an uninspiring (but still compelling) direction results in intrinsic motivation taking a hit at the start of the project. However, it is just the start of the project. This debt can be recouped. People are terrific to find their sense of purpose once the team progresses. One of the most potent biases there is, the confirmation bias, lets people reinterpret their world in a way to see their actions and the actions of others in a more positive light over time. Individual autonomy enables people to find their purpose even within a compelling but uninspiring setting. This personal purpose might not be felt at the start, but a good team context might enable every team member to find her or his purpose while working towards the goal of the project.

The quest to come up with an inspiring, instead of just a compelling direction is morally laudable, and it is beneficial for team performance. However, it is not needed to achieve high performance in teams. Think of it this way: What is an inspiring target for one person, might have little attraction for another. What can be inspiring on a high level, might be lost entirely in the daily struggle to get things done.  Motivation is a very individual thing. To come up with an inspiring direction that motivates everyone, independently of personal idiosyncrasies, is hard. Not every company is there to save the world. There is a job to be done, and it needs to be done for a compelling reason. That’s good enough. Inspiration is laudable, but it also is optional, often unrealistic and therefore usually ends up existing in shallow corporate slogans only.

To seek congruence between the direction of a team and the motivation of individuals often means to fight a losing battle. Instead, come up with a sincere direction, and let the group dynamics their individual motivational dispositions to the overall direction over time, while working towards the target. A sincere direction is often more practical and meaningful than sending people on an inspired mission invented by someone else or during a group “visioning workshop.”

 Warning: Directions release Energies

The more compelling the direction of the team is for its members the more energy will be released. Surely, releasing energy is a good thing to get things done, but releasing energy is dangerous. Usually, if given a choice between an under-energized and an over-energized team, most managers and organizations would choose an over-energized “squad”. The over-energized team might break things, in its push to get things done, but it gets things moving. But there are problems.

If the organization is not mobilized to a sufficient level for the change that the team is supposed to bring into life and the team is not able to pace its enthusiasm to what the organization can absorb, clashes will occur. These clashes might destroy the team’s energy level and burn significant relational capital that the team needs to succeed. A team’s effort is a lot about pacing. A team leads a change effort inside a company. Therefore, it needs to be visible to the other co-workers and not disappear out of sight of the rest organization. Enthusiasm is a virtue but might lead to frustration. A measured pace is often preferable over short-term euphoria. After all, most really significant changes are rather marathons than sprints.

Next post will take a look at Condition II:  “A True Team Task”. I hope you enjoyed this post. Let me know what you think!

Key points

  • Effective teams require 12 Conditions: 9 internal and three external to a team
  • Two types of internal Conditions can be identified:   Meaning & Spirit
  • The first condition is: A Compelling Direction
    • Mastering the art of mission command might be one of the most crucial things that distinguish an ordinary boss from a great leader
    • Mission-type tactics alone do not work well if used in a traditional business environment
    • To seek congruence between the direction of a team and the motivation of individuals often means to fight a losing battle
    • A team’s effort is a lot about pacing

Sources and Footnotes

[1]Hackman, Richard (2002) ‘Leading teams’

[2]According to Prof. Hackman there are 5 factors that driving team performance: 1. A Real Team 2. A Compelling Direction 3. An Enabling structure 4. A Supportive Context and 5. Coaching. All these factors and not more are represented in the model I give here. Just that I extended those factors to 12, as I think there is too much of importance hidden underneath some factors, especially in factor 3 “enabling structure”.

[3]Mission type tactics has been at the heart of German military doctrine ever since the three successful campaigns for German unification against Denmark, Austria and France at the end of the 19thCentury. A large part of the successes of the World War I’s “Sturmtruppen” (Small team tactics) or World War II’s “Blitzkrieg”, can be attributed to the vast discretion given to commanders at the front. For more an Moltkes command style see Barry, Quintin (2015) ‘Moltke and his Generals – a Study in Leadership’.

[4]Paraphrased from https://en.wikipedia.org/wiki/Mission-type_tactics

[5]In western military this is known as “Commanders Intent”. It is the second item on any mission briefing, just behind a description of the situation.

[6]Does anyone remember the “Fuzzy” Movement in the 2000’s? A hype term borrowed from electronics (“fuzzy logic”) that has been used in business to praise the virtues of vagueness and heuristics.

Why Most Companies Should Not Seek to Work in Teams

There are lots of reasons to hate teams. Teamwork diminishes authority, often involves endless and ultimately indecisive discussions, foul compromises and can be generally unrewarding.

There are lots of reasons to love teams. Working closely with another, with a near intuitive understanding, learning all the time and achieving more than one ever would have thought possible.

Today the hymn of the great team performance is sung all over the realm of business. Agile, Lean and nearly all progressive organizations rely on the team as the primary unit of work. In business, many people haven’t had that many great team experiences. Why is that?

I think there are two reasons. First, a group of people is not necessarily a team. Teams are a bunch of persons working together closely to achieve a goal that would have been out of reach for anyone acting individually. The dividing line between a group and a team is the amount of interrelatedness of team members. It alienates people if a manager say’s “you are a team,” while you know that one of the last things you want is to be associated with those slackers, psychopath, suckers, pretenders.[1]In day to day conversations, little difference is being made between a team and a group. If you and your co-workers are just a bunch of ladies and guys toiling on their daily tasks without too much need to communicate at all, the chances are that you are in a workgroup but not a team. In this setting, managers tend to appeal to the spirit of the team if she has no clue whom to make responsible for something.

Second, teams can make you feel powerless. In the quest to achieve something, it’s just much more complicated if you need to get along with other people instead of being able to deliver this thing on your own.

Now, in this post, I will not research what makes a great team experience.  I am a North German. As such, I am culturally primed to be too serious to write about such trivial matters as pleasurable experiences.  I will instead spell out what makes a team perform at a high level. I walk you through the conditions, and I think the chances are, that you will feel that a team where these are given, would be a good one to work in.

However, before that, I would like to get the basics of the economics of the team straight, because teams are not universally good. Sometimes, the better choice is to do work in a workgroup, than in a more tightly interconnected team.

The Benefits and Costs of Teams

If you want something done, you got to do it yourself. That might be the credo of an incompetent manager – but it is often true, too. A look at the empirical evidence of individual vs. team performance confirms this: Teams are often worse performers than individuals.

Here is an example. A study at Yale University looked at the time “A” grade students invested in their studies.[2]All the students were top, “A” grade, performers, but some managed to get to an “A” Grade by investing less time. The most efficient students spent just 10% of the time that the worst performing student did. A 1:10 performance ratio between lowest and highest performance student.

Now have a look at the performance of teams. In studies that looked at thousands of projects, the ratio of performance between the best and the worst performing teams was as high as 200: 1.[3]Imagine that: There are project teams so bad, that they accomplish what another team does in a week in 200 weeks! Apparently, there are factors at work that complicates teamwork a lot, compared to work that is done individually. Lousy team experiences can get people to back off from teams for good – and it is hard to blame them. How frustrating it must be to see all this waste if one works in a tedious, four yearlong project: 199 weeks sacrificed to entropy for could have been achieved in just one week.

Then again, the top teams are outperforming other teams by a factor of 200. What a bliss it must be to work in such a team! Effective teams manage to outperform less-effective teams by 1:200 – effective individuals manage to outperform others by 1:10. Apparently, there are many things to get right – and many things to get wrong – in teams. A team is a sensitive thing indeed. The following graphic illustrates the difference in performance spread.[4]

ivt

If the conditions for successful teamwork are given, a team is likely to outperform a group of individual actors.[5]Not by small increments, but by order of magnitude. Furthermore, the chances are that in complex and innovative situations, only a team-based organization will be able to deliver the intended outcome at all. The unique way a team is able to utilize the skills and minds of people, allowing each to exploit personal strength and grow in the process, can bring many superior results.

Still, a poorly organized team might be a nightmare. The point is: Companies that are not able to provide a suitable environment conducive to teams should stay away from the team. Instead, they should organize work groups, where managers define, assign and follow-up work tasks. That can be a much safer and efficient alternative.

Team Debt

Let’s take a look at the reasons for a team’s underperformance first. A way to understand the looming underperformance of teams is to think of a team’s potential performance in an equation:

Team Performance = Potential Performance – Coordination Loss – Motivation Loss[6]

The potential performance of a team is its theoretical peak performance. It might vary from team to team, from mission to mission, from the composition of the team with various team members, but there is always a theoretical maximum performance level. We might not know it, but it is there and likely to be reached if the 12 conditions are fully satisfied.

However, potential performance doesn’t translate into real team performance. Every team is automatically incurring two hits to its effectiveness. These hits are incurred right at the start of the project, and they are universal and unavoidable.

First, there is the cost of coordination that is needed to align people again and again on a target and ensure that work is done in a coordinated manner. Team meetings, Team processes, Reports – you know the drill. This alignment is meta-work, it takes time, that is not spent on working directly on the task at hand.

Second, a team task is very often less critical to a person than a task directly assigned to a person individually. A team task is somewhat out of the control of a person. Others need to collaborate. This is somewhat frustrating, as it prevents motivated persons from charging headlong into solving the task. On the other side of the motivational scale, a team opens up the opportunity to relax and take it easy. If the task is out of reach of what I can accomplish by myself, I might as well wait for the others to do something. This phenomenon is called “free-riding” in economics and “social loafing” in social psychology.

So, there is a universal and unavoidable penalty for each team effort. This penalty is in effect a debt that each team starts with. The good news is that this team debt can be repaid. Over the lifecycle of the team, the team may learn how to coordinate effectively, even intuitively.

Allow me a personal story about coordination debt, here. As I was 18 years old, I once had the opportunity to play a game of soccer against a German premier league team.[7]Being young and full of self-confidence, I respected this team much but still thought that in a one on one situation I can hold my own. It happened to be that I was playing against the at this time striker of the Polish National Team, Jan Furtok. I was right: I never lost a one on one situation against Jan Furtok in 90 Minutes – because there were none. He just didn’t need to go into these situations, as he knew exactly where to be at what point in time. Before I could do anything, he already passed the ball and moved on.  He and his co-players had an instinct understanding where the other would be and where he would play the ball. Their coordination was so brilliant; they did not have to use much of their abundant personal skill. Not against us village boys.  My team had so much of a coordination debt that all skill didn’t even play a role.

To repay coordination debt takes practice and reflection. The same is true for motivational debt. It can be repaid over time by opening up the new sources of motivation that the team offers: Relatedness to other persons. To not let down the team, to be loyal to it, to care for one another becomes a natural motivator the more people can bond with one another over time. With increased bonds, comes visibility and social control, which in makes coordinating the team easier: Coordination debt is repaid until coordination between people happens seemingly intuitively.

Coordination and motivation debt can be recouped over time. As the team gains in maturity, coordination efforts decrease, and the motivation dynamics of groups take over. This ripening of the team is accelerated by orchestrating the process of team building. Every team needs to go through a sequence of 4 phases that Bruce Tuckman, a scholar of organizational psychology has described as storming, forming, norming, and performing.[8]The better this process is managed, the sooner the team debt can be repaid. The team debt acts like a negative up-front investment that can be recouped in a classical “hockey stick” curve like manner.[9]

tuck

 

Does Team performance matter?

Excellent performance is not always what a company needs. What is needed in most situations is a team performance that is good enough to reach a certain level and do so consistently. A job well done by a team might not require a high level of performance. Often teams can get away with less.

This may sound unconventional and dispiriting, but this mode of operation is actually the norm. Most units or departments exist to do a particular, usually well-defined job, consistently every day. More is not required. Beside human laziness and ineptitude, there is an excellent rationale for this lack of performance aspiration for a team. First, as shown above, high-performance teams start with significant debt. The organization might be inept to provide an environment where a team can ever exceed the performance level that a much less risky workgroup can deliver. Second,  teams are pretty sensitive things. They might produce great outcomes but tend to do so inconsistently. High-performance teams are much harder to manage than teams or workgroups that aim at lower, but still useful enough levels of performance. Going for high performance is risky – good enough performance can be bought for less.

 

The Reasons why Teams may outperform Work-groups

However, what are the reasons why a team can perform better than a working group? After all, individuals are what teams are made off – why is a team allowing individuals to surpass themselves if only they act in unison? Here are the main reasons:

  • Growth and Learning are enhanced in teams. We learn by social interchange and feedback. The much tighter social collective context of a team enhances growth and learning for everyone in it, compared to the looser coupled workgroup. This is not to say that individuals do not learn in work-groups. In good teams, they just have more opportunities, nudges, motivation and need to learn – and grow as a person.
  • Social bonds increase motivation. People are social animals. Tight social bonds are one of the primary things that motivate us. Some studies show that the quality of relationships to others is the deciding factor regarding one’s quality of life and happiness. In the world longest running research on happiness, which has been running since 1938 and is still ongoing, the most significant decisive influence factor for the overwhelming majority of persons is the quality of relationships – by far.[10]  The fact is, humans are hard-wired to care for others.
  • Coordination is achieved much more smoothly the closer people bond with one another. If people look out for one another, with the team task in mind, the mind and senses of everyone in the collective, the team, are coordinating their work implicitly. Until there is no need for a single mastermind, the manager of a group, to be the one sole, principal caretaker for the whole group. Coordination in a team happens more and more in a distributed and implicit manner, instead of being centralized and outsourced to a manager.
  • The human mind is very susceptible to biases. The team can be a corrective. If the team engages in active discussion, allows for people to speak their mind, integrating a multidate of perspectives, the tricks our mind plays on us can be mitigated. By discussing with others and receiving feedback, we can be pushed out of intuitive thinking – i.e., rushing to conclusions- into, rational thought.[11] This mitigation is empirically much more effective by interpersonal interchange, then by staying within the limitations of one’s mind.

The importance of the last point is hard to overstate. Teams improve even a sociopath nerd that possess a cold, analytical outlook of the world and does not have too much interest in others. His cognitive biases, his memory biases, and latent social biases are all decreased by social interchange. This way, a team helps to surpass our biological, neuronal limitations.

That’s right: The team helps to overcome our evolutional, cognitive impediments. The better the team, the more a team is set-up to un-bias the individual. The history of group dynamics (or group processes)[2] has a consistent, underlying premise: ‘the whole is greater than the sum of its parts.’ This is a large part of what collective intelligence is all about.

However, still, the fact of the matter is: Each team starts with a sizeable debt. Unchecked, this debt will accumulate, and a team’s performance might stay below the level of a workgroup. In this case, the team as a method of organizing is not optimal.

However, if we can devise a way to rapidly pay off team debt, reliably again and again for each new or changed team, then the team might become a very superior tool to achieve organizational performance. Indeed, the team as a way organizing can get much more attractive than the department, i.e., a manager led workgroup, as the principal basic unit by which work is done. Such an organization would be one of a lot of networked teams with few central controls. However, before we get there (in Part II), let’s check out the 12 conditions of team performance in detail.

Oh, and one more thing: Individual performance matters.

Before we start looking at the 12 conditions of team performance, here is a reminder. The six internal conditions for individual effectiveness remain valid (for those check out You call yourself a Great Manager? Let Me Hear Your Theory of Performance!). To have the right skills, the right cognitive abilities, the urge to archive mastery, the autonomy to act, the deeply felt meaningful purpose and to be genuinely accountable for results still matter very much for effectiveness. The strength, weaknesses, needs, and idiosyncrasies of people don’t go away once they enter a team.

Effective teams build upon the conditions six for effective individuals. The 12 conditions of effective teams are all but tuned to provide a social environment for individual performance to prosper.

Yes, by leaving one’s confines of individuality and exposing oneself to others motivation takes a hit and coordination is tedious. Until one realizes that mastery is enhanced by collaborating, while one’s needed level of autonomy is not infringed upon and that the purpose of serving the group is one that can latch on to with one’s personal purpose.

Key Points

  • Team debt is universal and unavoidable
  • Companies that are not able to provide a suitable environment conducive to teams should stay away from organizing work in teams – they should stick to the workgroup instead

  • If a way can be found to rapidly and reliably pay off team debt, the team can be the nucleus of all work design, replacing the traditional department/workgroup

Next post will be about the first half of the 12 conditions for team effectiveness. I hope you enjoyed this post. Let me know what you think!

Sources & Footnotes

[1]The academic term is “underbounded” team. See Alderfer, Clayton (2005) “The Five Laws of Group and Intergroup Dynamics”.

[2]Sutherland, Jeff (2015) “Scrum”, p.42 based on a study by Joel Spoelsky on computer programmeUniversityle university class, see also https://www.joelonsoftware.com/2005/07/25/hitting-the-high-notes/

[3]IBM studies on project performance, cited by Sutherland, Jeff (2015) “Scrum” p.43

[4]Values are illustrative only, they can’t be generalized. Values are based on the exemplary studies cited by Sutherland, Jeff in “Scrum”, see above.

[5]Hackman, Richard (2002) “Leading Teams”

[6]Hackman, ibid. Hackman based this formula on psychologist Ivan Steiner, who described the term “process loss “ in his work.

[7]Hamburger Sport Verein (HSV), a member the German Bundesliga.

[8]Known as “Tuckman’s stages of group development”. See Tuckman, Bruce W. (1965) ‘Developmental sequence in small groups’, Psychological Bulletin, 63, 384-399. Tuckman later added a 5th phase, “Adjourning” to highlight the importance of the way the teams work is ending.

[9]Katzenbach, ‘The Wisdom of Teams’, 2002

[10]The Harvard Grant Glueck Study, see http://www.adultdevelopmentstudy.org

[11]Described by Daniel Kahnemann and Adam Tversky as System 1 and System 2, in: Kahneman, Daniel (2011) ‘Thinking Fast and Slow’.