Is It Workload… Or Is It Cognitive Capacity?

Over the summer term, I noticed another recurring pattern in coaching conversations with school leaders. At first, I assumed we were talking about workload. It’s the obvious explanation. Schools are busy places. There are always competing priorities, unexpected interruptions and more work than time available. But the more conversations I had, the more I realised something else was happening. The leaders I was speaking to weren’t simply describing having too much to do. They were describing having too much to hold in their heads at once.

What cognitive capacity looks like in schools

Across coaching conversations, the language was remarkably consistent.

→ “My brain just feels full.”
→ “I know what I need to do, I just can’t seem to think clearly.”
→ “I’m finding it harder to focus.”
→ “I feel like I’m constantly switching between things.”

What struck me was that these comments weren’t coming from people who lacked motivation or commitment. Quite the opposite. These were conscientious leaders who continued to:

→ Support colleagues.
→ Make difficult decisions.
→ Respond to safeguarding concerns.
→ Lead meetings.
→ Navigate staffing issues.
→ Prepare for September.
→ Manage behaviour.
→ Think strategically.

None of these responsibilities were unusual on their own. Together, however, they created something different. No single task felt overwhelming. It was the accumulation that quietly filled the available thinking space. Across primary, secondary and specialist settings, the pattern felt remarkably familiar. Not because leaders had suddenly become less resilient. But because their cognitive capacity had become increasingly crowded.

Are we describing the wrong problem?

This made me stop and think. Perhaps we’ve become so used to talking about workload that we’ve overlooked something equally important. Workload is usually measured by hours.

Cognitive capacity is measured by attention. By decisions. By interruptions. By the number of competing priorities we are trying to hold in our minds at the same time.

The challenge isn’t always the number of hours people are working. It’s the number of mental tabs they have open. Leaders keep going because they care deeply about their schools. But constant cognitive switching quietly reduces the quality of thinking long before it reduces the amount of work being completed.

Why It Matters Through an Educational Leadership Lens

Leadership depends on thinking. Good judgement. Reflection. Professional curiosity. Creativity. Strategic planning.

These aren’t things we simply squeeze in when time allows. They are fundamental to leading well. Yet they are often the first things to disappear when cognitive capacity becomes overloaded. Leaders begin reacting rather than reflecting. They solve today’s problems but have less space to think about tomorrow’s opportunities.

Over time, this doesn’t just affect individual wellbeing. It affects leadership quality. Not because leaders become less capable. But because they have less uninterrupted thinking space available to them. This isn’t about resilience as simply pushing through. It’s about recognising that effective leadership requires protected thinking time.

Why naming the pattern matters

One of the challenges with cognitive capacity is that it often feels like workload. The symptoms are similar.

-> Mental tiredness.
-> Difficulty concentrating.
-> Feeling overwhelmed.
-> Reduced clarity.

But once leaders recognise that the issue isn’t simply “too much work”, they often begin asking different questions.

Instead of:

“How do I work harder?”

They begin asking:

“How do I protect my thinking?”

That small shift changes the conversation.

Pause for a Moment

You might pause for a moment and ask yourself:

Q. What is taking up most of your thinking space during the day, and how much of it genuinely needs to stay there?

Sometimes the answer becomes visible very quickly.

One Small Doable Action

1: Choose one thirty-minute period to protect purely for thinking during the school week. (No emails. No meetings. No problem solving for other people – Just uninterrupted time to think about one important issue).

Sometimes the most productive thing a leader can do isn’t complete another task. It’s create the space to think more clearly.

Noticing patterns in schools

This article forms part of the Noticing Patterns in Schools series, where I share patterns that emerge through leadership coaching conversations with school leaders across the UK. The aim isn’t to prescribe quick fixes or offer generic advice. Instead, it is about noticing what might otherwise go unnamed and helping leaders create space for clearer thinking.

If you’d like to receive future reflections as new patterns emerge, you can subscribe to the LinkedIn newsletter here: Here

Because resilience in leadership rarely comes from working harder. More often, it begins with noticing the patterns shaping the work.

You may also be interested in our previous articles in this series :

The Emotional Release After Exams

The Competence Question

The Myth of the Quiet Summer Term