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Insights

The most dangerous assumption in high-reliability operations? That good people won’t make mistakes.

Your people are not the weakest link in the system — unless the system has been designed to make them one. Human Performance is a practical approach to designing, leading and improving work so that people can perform reliably in complex, demanding and often imperfect environments.

Christiaan McLeod, Founding Director

Christiaan McLeod

Founding Director ·

High reliability starts where blame ends.

Your people are not the weakest link in the system — unless the system has been designed to make them one.

In civil aviation, as in defence, energy and decommissioning, the consequences of failure can be severe. Yet many organisations still treat human error as an individual shortcoming, rather than as evidence that the conditions of work, the controls, the leadership or the learning systems need closer attention.

This is where Human Performance (HP) matters.

HP is not a behavioural campaign, a set of posters, or a softer way of talking about safety. It is a practical approach to designing, leading and improving work so that people can perform reliably in complex, demanding and often imperfect environments.

Fully integrated, Human Performance becomes a cornerstone of high-performing culture. It shapes how organisations plan work, manage risk, lead people, investigate events and learn.

We cannot “AI out” the human

High-reliability organisations understand a simple truth: competent people still make mistakes. Even skilled, conscientious professionals — including those working within AI-enabled systems — are affected by time pressure, changing conditions, interruptions, workload, equipment limitations and competing priorities.

People routinely adapt to keep work moving. Often that adaptability is a source of resilience. But when organisations don’t understand the gap between work-as-imagined and work-as-actually-done, those same adaptations become hidden risks.

A mature Human Performance approach helps organisations:

  • Reduce the likelihood and consequence of operational events.
  • Improve decision-making, supervision and control at the point of work.
  • Reduce rework, avoidable delays, workarounds and production loss.
  • Strengthen reporting, trust and operational learning.
  • Improve workforce engagement, retention and confidence.
  • Protect reputation, client relationships and regulatory standing.

The commercial argument is clear: fewer failures mean less downtime, lower investigation and recovery costs, better delivery performance, and greater confidence from clients, regulators and employees.

But the most important benefit is cultural. HP creates the conditions in which people can succeed consistently, learn and improve — rather than simply being expected to.

The principles — and what happens without them

People make mistakes

This is not an excuse for poor performance. It is an acknowledgement of reality: error is possible even when people are experienced, trained and committed.

A Human Performance approach asks a different question — what made the error understandable? It examines task design, procedures, workload, communication, tools, conditions and leadership expectations. It sets out to improve the system, not simply to identify the individual closest to the outcome.

Flip it: “Competent people shouldn’t make mistakes.” When this belief prevails, people hide errors, stop reporting near misses and become reluctant to ask for help. Investigations focus on who failed rather than what shaped the failure. The learning is lost, and the same weakness returns in a new form.

Error-likely situations are predictable and manageable

Error is not random. Certain conditions reliably raise its likelihood: unfamiliar work, interruptions, poor handovers, fatigue, ambiguous instructions, tight timescales and weak coordination.

High-performing organisations identify these conditions before work begins and build practical defences — better planning, clear briefs, peer checking, stop points, simplified processes and effective supervision.

Flip it: “People just need to pay more attention.” “Be careful” is not a control. Attention is finite, especially under pressure. When vigilance becomes the main defence, the organisation quietly transfers responsibility for weak systems onto the people doing the work — and eventually the system demands more attention than anyone can supply.

Behaviour is shaped by the system

People’s choices are influenced by their environment: the processes, resources, targets, equipment, information, leadership behaviours and cultural signals around them.

When procedures are impractical, resources are constrained or priorities conflict, people adapt. The critical question is not whether adaptation occurs — it always will — but whether leaders understand it and learn from it.

Flip it: “If people don’t follow the procedure, they’re the problem.” This treats deviation as misconduct rather than information. It ignores the possibility that the procedure is outdated, incomplete or unworkable in real conditions. Workarounds become normal, frontline expertise goes unheard, and the gap between written work and real work widens.

Events are opportunities to learn

Near misses, quality defects, production losses and unwanted events all reveal how the system is performing. A fair, learning-focused review asks what made sense to people at the time, what pressures they faced, and what conditions shaped their decisions.

This does not remove accountability. It makes accountability more balanced and more effective — by identifying the changes that genuinely reduce the chance of recurrence.

Flip it: “The investigation is complete when someone has been held accountable.” When blame dominates, people learn that honesty carries personal risk. Reporting falls, accounts turn defensive, and corrective actions default to reminders, retraining and discipline. The actions close; the underlying risk remains.

Leaders shape the response

Culture is revealed in how leaders respond to bad news, uncertainty and failure. Leaders who are curious, fair and visible in operational environments generate better intelligence and stronger learning.

They ask: What made this difficult? What got in the way? What do we need to change?

Flip it: “Strong leaders have all the answers.” When leaders respond with judgement or false certainty, people manage the message rather than share the reality. Risks are escalated too late, uncomfortable information is softened, and the organisation loses its ability to learn quickly.

Make Human Performance operational

Human Performance should not sit solely with the safety function. Its value comes from integration — into leadership, planning, assurance, supervision, event learning, change management and contractor relationships.

The central question has to move from “Did people comply?” to “Did our system enable people to succeed?”

Mission Performance helps organisations embed Human Performance into the way work is led and delivered — strengthening operational learning, leadership capability and reliable performance.

Frequently asked questions

Does Mission Performance work on human factors in drilling?

Yes. Work includes human factors and crew resource management in safety-critical drilling, safety leadership in high-risk operations, and leadership pipelines in national energy organisations. Mission Performance is an IADC approved provider.

How do I talk to Mission Performance about this?

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