Leadership Judgement Series – Part Eight
Leadership bias rarely looks like poor judgement from inside the room. More often, it looks like a perfectly reasonable explanation for why one piece of evidence deserves greater weight than another.
Imagine a leadership team deciding whether to increase investment in a market it entered two years earlier. Revenue is growing, the business has recently won a significant customer and the sales pipeline remains healthy. However, there are less-comfortable signals, too. Customer acquisition costs have increased, sales cycles are getting longer and several experienced account executives are independently reporting that buyer objections are changing.
The CEO who originally championed the market sees the revenue growth, customer wins and pipeline as evidence that the strategy is working. The weaker signals are interpreted as execution issues that can be addressed through stronger sales discipline. Another executive looks at exactly the same information and sees something different. The market remains attractive, but perhaps the economics are beginning to change and the assumptions behind the original investment deserve another look.
Nobody has ignored the evidence or necessarily lacks information. The difference lies in the weight each person gives to what they see. That is why leadership bias matters. It rarely removes evidence from the room. It changes the weight different evidence receives.
Leadership Bias Is Not a Failure of Intelligence
Leadership bias can sound like an accusation. It suggests somebody is irrational, closed-minded or allowing personal prejudice to override the facts. In most leadership situations, the reality is considerably more subtle. Experienced leaders have to simplify complexity.
They cannot reconstruct every strategic decision from first principles or treat every new piece of information as though they have never encountered anything similar before. Experience allows them to recognise patterns, identify what usually matters and reach conclusions faster than someone confronting the situation for the first time.
That capability is valuable.
A 2022 review of cognitive bias in professional decision-making describes heuristics or ‘Rule of Thumb’ as simplified information-processing strategies that can help people navigate complex judgements, but can also produce systematic and predictable errors. Importantly, the review also acknowledges the long-running debate about when these shortcuts are useful and when they can mislead. That distinction matters in business.
A founder who has spent twenty years selling into a particular market has accumulated knowledge that no dashboard can replicate. A CFO who has seen several investment cycles understands patterns in cash, margin and risk that less experienced colleagues may miss. A commercial leader who has watched customer buying behaviour change across multiple downturns brings judgement developed through experience rather than theory.
The objective is not to remove those mental models, but to recognise that the same efficiency that makes experienced judgement possible can occasionally distort what that judgement sees.
Experience creates a lens. Bias begins when we forget that we’re looking through one.
Bias Can Influence the Evidence Before We Interpret It
Leadership bias does not only affect what leaders do with information once it reaches them. It can influence which information the organisation goes looking for in the first place. For example, suppose a leadership team believes sales of a new proposition are disappointing because the commercial organisation is not executing effectively enough.
The questions that follow are perfectly sensible.
- Is marketing generating the right opportunities?
- Where is conversion dropping?
- Which salespeople are underperforming?
- Does the team need more training?
- Do incentives need changing?
Each question directs the organisation towards a particular set of evidence.
- Pipeline is analysed.
- Conversion rates are segmented.
- Call activity is reviewed.
- Salespeople are interviewed
- Additional enablement may be put in place.
However, imagine that the underlying diagnosis is wrong. What if the more important question is:
Does the proposition still solve something customers value enough to change supplier for?
That question sends the organisation somewhere completely different. It turns attention towards customer priorities, buying criteria, competitive alternatives, perceived differentiation and the commercial friction involved in changing supplier.
A 2022 review of professional decision-making describes confirmation bias as ‘seeking and interpreting evidence in ways that are partial to existing beliefs and expectations’. It does not therefore require somebody simply to reject information they dislike.
For leadership teams, that creates an important risk. The original interpretation can determine the question. The question determines where the organisation looks. The resulting evidence then appears to validate the original interpretation because the organisation investigated the part of reality most likely to support it.
Nobody needed to manipulate the data.
Bias can influence the answer before the evidence is collected by influencing the question the organisation chooses to investigate.
Inconvenient Evidence Can Be Asked to Work Harder
There is an even more difficult form of leadership bias because it can look like intellectual rigour.
Return to the leadership team considering further investment in its new market. A £2 million customer win is announced.
Around the executive table, it is understandably described as strong evidence that the strategy is gaining traction. The business has secured a substantial commitment from a sophisticated customer willing to spend real money. At the same meeting, three experienced account executives report that buyers are increasingly questioning an important part of the proposition.
The response might be: “Interesting, but that’s anecdotal. We need more evidence before drawing conclusions.”
Both reactions are defensible. A major order genuinely is commercially significant. Three conversations genuinely are not enough to establish that the market has changed.
However, there is a question worth asking: Would the leadership team apply the same evidential standard if the signals pointed in the opposite direction?
If three positive customer conversations would have been described as encouraging evidence of market momentum, why do three negative ones automatically become anecdotes requiring further validation?
Or if one lost £2 million opportunity would have been dismissed as an individual purchasing decision, why does one £2 million win prove the strategic case?
More recent work on motivated reasoning suggests that people can collect, process and interpret information in goal-driven ways, including towards conclusions that align with prior beliefs, values or identity commitments. That helps explain why leadership bias can operate through reasoning rather than simply replacing it.
The leader is not necessarily thinking: “I don’t like that evidence, so I’m going to ignore it.”
The thought may be: “That evidence isn’t sufficiently representative yet.”
And that may even be true. The leadership test is whether evidence supporting the preferred conclusion would have been asked to meet the same standard.
Bias does not always make leaders reject inconvenient evidence. Sometimes it simply makes inconvenient evidence work much harder to be believed.
Experience Makes Some Interpretations Feel More Natural Than Others
Experience deserves particular care because it would be easy to turn this into an argument that experienced leaders become dangerously overconfident.
That is not the point.
Experience improves judgement in countless situations, but it also gives leaders increasingly powerful mental models of how businesses, customers and markets tend to behave.
- A founder who has successfully built three businesses through direct enterprise sales has genuine evidence that direct selling can work.
- A manufacturing MD who has repeatedly protected margin through rigorous operational management has good reason to look towards efficiency when profitability comes under pressure.
- A technology leader who correctly anticipated two major industry shifts understandably develops confidence in their ability to recognise another.
Those experiences do not become biases simply because they influence the leader.
The problem appears when: “This has worked before” quietly becomes: “This is how this type of problem works.”
Now consider the manufacturing MD facing margin pressure.
Their first instinct may be to improve productivity, reduce waste and tighten cost control. Previous experience tells them those interventions can work, and the numbers may support them.
Another explanation may nevertheless exist. Perhaps customers increasingly perceive the proposition as less differentiated and discounting is driving the margin deterioration.
The operational diagnosis and the commercial diagnosis can both be reasonable interpretations of the same outcome.
Experience makes one feel more familiar, namely that familiarity can make it appear more obviously correct.
The judgement challenge is not to distrust experience. It is to stop experience acquiring an automatic right to win when current evidence points elsewhere.
Three Forms of Bias With Commercial Consequences
There are dozens of recognised cognitive biases, and leadership teams could spend considerable time learning their names without improving a single decision.
Three manifestations are particularly useful because they regularly appear in commercial choices.
Confirmation bias means evidence compatible with an existing belief can receive more attention or credibility than evidence challenging it. A leadership team convinced that customers value its technical capability may collect examples of sophisticated customers praising the technology while rationalising repeated objections about implementation as sales problems.
Status quo bias gives the current position an advantage simply because it is already the current position. New investments may need detailed financial models, customer validation and board approval, while continuing to spend millions on an established activity is treated as the default and receives substantially less scrutiny.
The asymmetry matters.
A proposal to invest £4 million in something new might face months of challenge. Continuing to spend £4 million annually on an activity the organisation already performs may never encounter an equivalent question:
If we weren’t already doing this, would we choose to start today?
The familiar option can avoid having to prove itself because it already exists.
The third is overconfidence, particularly excessive confidence in the precision of an estimate.
A forecast of £12.4 million can acquire an authority that £10–15 million somehow does not.
Yet the apparently precise figure may depend on assumptions about conversion, pricing, demand, customer retention and implementation dates that could reasonably produce a wide range of outcomes.
The spreadsheet is precise. The future is not.
None of these biases means the underlying decision must be wrong. The risk is that they affect what leadership notices, how much confidence it places in the evidence and how seriously it considers alternative explanations.
When Leadership Bias Becomes Organisational Bias
Individual bias becomes much more commercially significant when the organisation begins adapting around it.
Imagine a CEO who strongly believes a particular market will become central to the company’s growth.
The strategy is agreed.
Budgets follow it. Sales targets reflect it. Recruitment priorities support it and management reporting begins measuring progress against the plan. None of that is inappropriate. Organisations need priorities, and once leadership chooses a direction the business has to organise around it.
However, something else can gradually happen. Information inconsistent with the strategy begins arriving inside a system designed to execute the strategy.
- Customer concerns become sales objections that need overcoming.
- Unexpected competitor wins become evidence that the business needs to sharpen its proposition.
- Lower-than-expected demand becomes a marketing problem.
- Operational difficulty becomes a capability gap requiring additional investment.
Each interpretation may be reasonable. Together, they can create an organisation increasingly capable of explaining why the strategy remains correct. The leader does not need to suppress uncomfortable information.
The organisation learns how to interpret it and that is when a personal bias becomes an organisational risk.
A leader’s bias becomes an organisational problem when the business starts filtering reality to fit it.
This is why customer perspective, independent challenge and constructive friction matter to leadership judgement.
Getting reality into the room is essential, but it is not enough.
Leadership still has to allow that reality to carry sufficient weight once it arrives.
Knowing About Bias Does Not Remove It
Most experienced leaders already know that confirmation bias exists. Simply knowing its name does not make somebody immune to it.
Indeed, asking a leadership team: “Are we being biased here?” is unlikely to produce much useful insight.
Most people believe they are looking at the evidence reasonably and that is precisely why the bias is difficult to see. A more practical approach is to change the question.
One practical way of challenging a preferred interpretation is to deliberately consider the opposite: ask what would have to be true for the alternative conclusion to be correct. Recent research in a management setting found that this approach reduced some anchoring effects in supplier evaluation, although its effectiveness varied according to the circumstances.
Applied to leadership decisions, that might mean replacing:
“Are we confident this market still represents the right investment?”
with:
“What would have to be true for reducing our investment in this market to be the better commercial decision?”
Or instead of:
“Does the evidence support the acquisition?”
ask:
“If the acquisition were a poor decision, what evidence would we expect to see?”
The purpose is not to manufacture doubt or force leadership towards the opposite answer. It is to make the preferred conclusion work harder. That distinction is important.
Good judgement is not created by treating every decision as equally likely to be wrong. Sometimes the evidence strongly supports one course of action.
That said, significant decisions deserve enough challenge to establish that leadership has reached its conclusion because the evidence genuinely supports it, rather than because the evidence has been interpreted through the conclusion it already preferred.
Make the Preferred Answer Work Harder
Leadership teams do not need another model to manage bias. They need a few questions capable of making their reasoning visible before significant commitments are made.
1. What do we currently want to be true?
This can be more revealing than asking what the team believes.
What conclusion would protect the investment already made, validate the current strategy, avoid a difficult conversation or make the next twelve months easier?
Wanting an outcome does not make it wrong. It does mean leadership should be alert to how that preference might affect its interpretation of the evidence.
2. What evidence are we giving the greatest weight, and why?
Is it genuinely stronger, more current or more relevant?
Or does it simply fit the existing view more comfortably?
3. Which evidence are we asking to meet a higher standard of proof?
This is particularly important where quantitative evidence and qualitative signals conflict.
Would the same number of positive customer conversations be considered more persuasive than negative ones?
Would one major win receive more strategic significance than one major loss?
4. What would have to be true for the opposite conclusion to be correct?
Take the alternative seriously rather than constructing the weakest version of it. If the strategy is right, it should survive credible challenge.
5. Would we interpret this evidence differently if it supported a competitor’s strategy rather than our own?
Distance can be revealing. Leadership teams often evaluate somebody else’s strategy more dispassionately because they have no need to defend the investment, reputation or assumptions behind it. The objective of these questions is not to prove leadership wrong.
It is to expose whether different conclusions are being judged using different rules.
Better Leadership Judgement Does Not Eliminate Bias
Strong leaders are not unbiased. Neither are strong boards, experienced advisers, customers, investors or researchers.
Human judgement does not work that way. Leadership therefore cannot depend on eliminating the mental shortcuts and prior experiences through which people interpret complex situations. It can, however, make important decisions harder for those biases to dominate.
Make the preferred conclusion visible – Look deliberately for evidence that challenges it.
- Apply comparable standards of proof.
- Consider what would make the alternative interpretation correct.
- Invite perspectives capable of changing the conversation rather than merely adding another voice to it.
- Then make the decision.
The objective is not endless doubt. Leadership still requires conviction, commitment and the ability to act when certainty is unavailable. Conviction is strongest when it has survived serious contact with evidence that might have changed it.
Because good leaders do not become unbiased. They become harder for their own bias to fool.
So before the next strategy discussion, investment proposal or significant commercial decision, there is one uncomfortable question worth putting on the table:
Which evidence are we discounting because accepting it would force us to reconsider the conclusion we currently prefer?
Next in the Leadership Judgement Series
Why Leadership Decisions Must Reflect Today’s Business Reality
Bias can distort the way leaders interpret evidence that is available today.
There is another danger, however, namely that the evidence itself may accurately describe a reality that has already moved on.
In Part Nine, we look at why leadership judgement depends not simply on knowing the business, but on continually testing what remains true now.