Schools Are Human Systems

Why exhaustion is a predictable outcome of adaptive work

The end of Term 1 always carries a particular flavour in schools. Relief. Pride. A gritty exhale. A sense of how on earth did we fit all of that in. We talk about ‘re-set and recovery’ as the winter break approaches. But beneath those words lies a simple truth:

We are exhausted - as individuals, as teams and as systems.

This exhaustion is not a personal failing or a lack of resilience. It is the predictable result of working within complex adaptive human systems, where needs shift constantly, emotions fluctuate and contexts change faster than structures can stabilise.

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Complexity is the work

Schools are not machines that can be fine-tuned for maximum efficiency. They are complex adaptive systems where:

• change is continuous

• small shifts ripple widely

• outcomes do not neatly follow inputs

(Davis & Sumara, 2006; Mason, 2008)

Teachers make between 1,000 and 3,000 decisions per day (Hattie, 2009). The cognitive engine runs relentlessly hot, as schools operate at the intersection of cognitive demands, emotional labour, relational attunement, physical vigilance and social complexity.

Stability is momentary.
Adaptation is constant.
This is the work.

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What tiredness really is

Our language has become more precise: fatigue, overload, bandwidth, capacity, depletion and burnout. They are connected but analytically distinct:

• Fatigue: temporary strain that lifts with rest

• Overload: when demands exceed cognitive processing capacity

• Reduced bandwidth: attention constrained by competing demands

• Capacity: the upper limit on cognitive and emotional resources

• Depletion: self-regulation weakened by sustained demand

• Burnout: chronic exhaustion requiring structural change

(Hockey, 2013; Kahneman, 2011; Maslach et al., 2001)

By December, most educators are not ‘tired’.
They are depleted.

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Where the planned meets the unpredictable

Predictability matters. It protects learning. Yet schools are never only the plan.

They are:

• a friendship crisis erupting suddenly

• a family stressor landing without warning

• a colleague holding something fragile

• a new policy requiring immediate adjustment

These moments do not expose weak systems. They reveal humanness.

Leading in schools means operating where structure meets emergence: returning to the plan when we can, adapting when we must (Heifetz, Grashow & Linsky, 2009). Complexity theory reminds us that human systems behave unpredictably, responding to relationships and context rather than linear cause-and-effect explanations (Davis & Sumara, 2006; Mason, 2008). It is in these emergent moments that the real culture of a school is shaped - not in the documents we write but in how we respond when the day does not go to plan.

This is where the emotional and cognitive weight falls most heavily on leaders - those holding space for others while navigating the unpredictability themselves.

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The relational load of leadership

Leadership increases exposure to emotional complexity and social scrutiny. For introverted leaders, visibility and constant availability drain energy rapidly, even when work feels purposeful (Eysenck, 1967; Cain, 2012).

Capacity is not weakness.
It is energy economics.

How we lead must fit who we are.

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Reset. Recover. Reflect. Refine.

A leadership strategy, not a luxury

Recovery is a precondition for adaptive capacity (Demerouti et al., 2021). Without it, neither individuals nor systems can improve.

In schools, this means supporting recovery across five core domains:

• Cognitive: reducing unnecessary decisions and removing low-impact tasks to restore working memory and executive function.

• Emotional: naming feelings and creating psychologically safe spaces to reduce emotional labour strain.

• Relational: prioritising energising connections and collaborative clarity to buffer stress.

• Physical: embedding sleep, movement and daylight to sustain attention and regulate the nervous system.

• Purpose: aligning effort with values and pausing initiatives without a clear theory of action to strengthen intrinsic motivation.

Fatigue is individual. Depletion is relational. Burnout is structural.

The goal is not to recover from the system but to design the system so recovery is built into the work.

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Becoming

Schools are worlds of becoming. Students are becoming. Staff are becoming. Cultures are becoming.

Becoming is unpredictable.
Becoming is relational.
Becoming is human.

Exhaustion does not mean we are doing it wrong. It means we are in the work that matters.

As we close Term 1, we re-set not for productivity but for perspective.
Not to do more.
But to return with the clarity and capacity the work deserves.

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References

Cain, S. (2012). Quiet: The power of introverts in a world that can’t stop talking. Penguin.

Davis, B., & Sumara, D. (2006). Complexity and education: Inquiries into learning, teaching, and research. Routledge.

Demerouti, E., Bakker, A. B., & Halbesleben, J. (2021). Occupational stress and burnout: A review of theory and research. Annual Review of Organizational Psychology and Organisational Behaviour, 8, 401–431. https://doi.org/10.1146/annurev-orgpsych-012420-055931

Eysenck, H. J. (1967). The biological basis of personality. Thomas.

Gross, J. J. (2015). Emotion regulation: Current status and future prospects. Psychological Inquiry, 26(1), 1–26.

Hattie, J. (2009). Visible learning: A synthesis of over 800 meta-analyses relating to achievement. Routledge.

Heifetz, R., Grashow, A., & Linsky, M. (2009). The practice of adaptive leadership: Tools and tactics for changing your organisation and the world. Harvard Business Press.

Hockey, R. (2013). The psychology of fatigue: Work, effort and control. Cambridge University Press.

Kahneman, D. (2011). Thinking, fast and slow. Penguin.

Mason, M. (2008). Complexity theory and the philosophy of education. Educational Philosophy and Theory, 40(1), 4–18. https://doi.org/10.1111/j.1469-5812.2007.00412.x

Maslach, C., Schaufeli, W., & Leiter, M. (2001). Job burnout. Annual Review of Psychology, 52, 397–422.