Leadership development literature tends to err in one of two directions: either understating the leader’s influence on team psychological health, implying it is largely individual and therefore beyond leadership intervention, or overstating it, implying that a sufficiently skilled and caring leader can create a psychologically healthy environment for anyone. The research supports a more specific account: some things are substantially within the leader’s influence, some are not, and the honest mapping of the boundary matters for both the leader’s wellbeing and the team’s.

Hackman’s team effectiveness research: what is actually in the leader’s control

Hackman and Wageman’s (2005) research on what determines whether teams work effectively established the most precise available account of where leader influence is highest and where it is not. The research identified the specific conditions that most reliably predict team effectiveness and assessed which of those conditions are within the leader’s meaningful influence.

The highest-return leader interventions are structural rather than interpersonal. The composition of the team — who is on it, whether the combination of skills and working styles creates the conditions for effective collaboration — is one of the most consequential decisions a leader makes and one of the most fully within their control before the team is formed. The structure of the work — whether it provides the Hackman and Oldham (1976) job design conditions of task significance, skill variety, task identity, autonomy, and feedback — is within the leader’s design authority and determines whether the work itself is intrinsically motivating or structurally depleting. The clarity and compelling quality of the direction — whether the team knows what they are trying to accomplish and why it matters — is a communication decision within the leader’s direct control.

These structural decisions are the highest-return investments in team psychological health precisely because they shape the daily experience of every team member without requiring the leader’s continuous personal intervention. The team whose work is intrinsically meaningful, whose composition produces effective collaboration, and whose direction is genuinely clear has its psychological health substantially determined by conditions the leader established through structural decisions — not through the ongoing management of interpersonal dynamics.

Edmondson’s psychological safety evidence: what leaders meaningfully influence but do not control

Edmondson’s (1999) research established psychological safety as the team-level condition most consequential for performance, learning, and wellbeing — and established that it is significantly influenced by leader behaviour without being directly controlled by it. Psychological safety is an emergent team-level property: it is the shared belief that interpersonal risks are safe to take, and it reflects the accumulated experience of every team member with the consequences of doing so.

The specific leader behaviours with the strongest psychological safety effects are: explicit acknowledgment of fallibility and uncertainty (which signals that acknowledging ignorance or error is not career-damaging); non-punitive response to concerns, mistakes, and contrary views (which demonstrates rather than merely claims safety for honest contribution); genuine curiosity about others’ perspectives (which models and rewards intellectual honesty); and structural interventions that reduce power asymmetry in contribution contexts (which create conditions in which lower-status team members can contribute without the social cost that hierarchy typically imposes).

Each of these is within the leader’s behavioural control. The resulting psychological safety is not. A team with a history of adverse consequences for honest contribution, a composition that includes members with individually high threat-sensitivity, or an organisational context in which the leader’s own ability to honour their psychological safety commitments is constrained by broader organisational dynamics may not develop the psychological safety that the leader’s behaviour is designed to produce. The leader can do everything right and still not produce what they are trying to produce — because they are influencing a team-level emergent property rather than directly controlling an individual outcome.

The Maslach six areas: the structural dimensions most within leader influence

Maslach’s (2001) burnout research identified six areas of work life whose misfit with individual needs produces burnout and whose fit produces engagement. The value for understanding leader influence is the specific mapping of which areas are most within the leader’s authority to change.

Workload — the volume and intensity of demands relative to available resources — is within the leader’s direct influence through decisions about scope, prioritisation, and resourcing. Structural workload reduction consistently outperforms interpersonal and culture interventions for team health improvement in the occupational health research: the leader who removes two simultaneous competing demands from the team’s plate produces more health improvement than the equivalent investment in wellbeing communications. Control — the degree of genuine autonomy the team has over how they achieve their goals — is a function of the delegation structure the leader creates. Reward and recognition, community, fairness in resource and opportunity allocation, and values alignment between the work and the team’s genuine motivations are each substantially within the leader’s structural design authority.

What is not within the leader’s authority: the organisational context constraints that limit how the six areas can be designed, the individual differences in how team members experience the same work conditions, and the developmental and attachment histories that determine what each person needs to feel psychologically safe.

What leaders cannot control: the Bonanno individual variance finding

Bonanno’s (2004) resilience trajectory research establishes the most important limit of leader influence on team psychological health. The trajectory a person follows through adversity — resilience, recovery, chronic dysfunction, or delayed breakdown — is substantially determined by the psychological resources they bring to the adversity. These resources are shaped by developmental history, attachment history, and individual differences in stress physiology that are entirely beyond the leader’s influence.

The leader who designs an excellent team psychological health environment will still have team members who struggle — because individual psychological health has determinants that no team environment can fully address. The leader who interprets this as evidence that their environment design is insufficient and responds by intensifying their personal investment in each team member’s wellbeing is making the error that the overreach case study documents: taking responsibility for outcomes that are partly beyond their influence, creating the over-managed dynamic that reduces team autonomy, and exhausting themselves in a role that is not theirs.

The overreach failure mode

The leader who feels personally responsible for every team member’s psychological health is carrying an impossible brief. Team members will experience difficulties that originate outside the work — in their personal lives, their health, their relationships, and the histories that they bring to work with them. The leader who attempts to be the source of psychological support for all of these is both exceeding their role and setting up the dynamic that prevents the professional clarity that the relationship requires.

The appropriate boundary is the one that the research supports: the leader is responsible for the conditions within their authority — structure, workload, direction, composition, and the leader behaviours that influence psychological safety. They are not responsible for outcomes that depend on variables outside their authority. The distinction protects the leader from the overreach that burns them out and protects the team from the dependency that the overreach creates.

Books worth reading on this

Why Motivating People Doesn’t Work and What Does by Susan Fowler. Fowler’s account of why leader attempts to motivate team members through recognition programmes, incentives, and culture initiatives frequently produce the opposite of the intended effect — and what the SDT-based optimal motivation approach looks like in practice — provides the most practically applicable available complement to the Hackman structural priority finding and the Edmondson psychological safety influence-versus-control distinction. Her specific account of what is and is not within the leader’s authority to change in team members’ motivation quality maps directly onto the control boundary this article identifies as the most important honest mapping in leadership development.

If the dynamics described here are significantly affecting your wellbeing, speaking with a psychologist is the right next step. UK: Samaritans (116 123, free, 24/7). Mind (0300 123 3393). BACP: bacp.co.uk/search/Therapists. Crisis Text Line — text HOME to 741741 (US, UK, Canada, Ireland). International: internationaltherapistdirectory.com.

This article is for educational and informational purposes only. Sources: Hackman, J.R. & Wageman, R. (2005), A Theory of Team Coaching, Academy of Management Review, 30(2), 269–287. Hackman, J.R. & Oldham, G.R. (1976), Motivation Through the Design of Work, Organizational Behavior and Human Performance, 16(2), 250–279. Edmondson, A.C. (1999), Psychological Safety and Learning Behavior in Work Teams, Administrative Science Quarterly, 44(2), 350–383. Maslach, C. & Leiter, M.P. (2001), Burnout and Health, in Baum, A. (Ed.), Handbook of Health Psychology, Erlbaum. Bonanno, G.A. (2004), Loss, Trauma, and Human Resilience, American Psychologist, 59(1), 20–28. Coan, J.A. & Sbarra, D.A. (2015), Social Baseline Theory, Current Opinion in Psychology, 1, 87–91. Hackman, J.R. (2002), Leading Teams, Harvard Business School Press. Fowler, S. (2014), Why Motivating People Doesn’t Work and What Does, Berrett-Koehler.