Over the years, I’ve seen great businesses stall, not because they lacked ideas, effort, or ambition, but because their leaders unknowingly filtered out the very signals that could have helped them adapt and grow. I’ve done it myself. It’s easy to fall in love with our own thinking when it’s served us well in the past. But what worked yesterday won’t always unlock tomorrow.
That’s why I wanted to write about confirmation bias, not as a psychological theory, but as a very real, very human pattern I’ve seen in boardrooms, leadership teams, and founder decision making. Recognising it, and learning how to challenge it, has made me a more effective leader. If you’re scaling a company, building a team, or just making tough calls under pressure, I hope this helps you sharpen your own saw.
Why embracing challenge is your secret weapon for scaling smarter
Some of the most dangerous decisions I’ve ever seen in business were made with full confidence. No hesitation, no debate, no friction, just a clear fast-moving stream of logic… built entirely on untested assumptions.
Welcome to the quiet power and influence of confirmation bias.
When you’re leading a business, confidence becomes a currency. People look to you for clarity. Certainty is seductive, but what if the very thing that makes you look strong on the outside is creating blind spots that could cost you growth, talent, and your competitive edge.
First, let’s be clear on how we are framing confirmation bias today because there are many interpretations of this topic. This is from my own experiences and how I’ve found it shows up for the founders, leaders and directors I work with.
What Is confirmation bias in a leadership context
Confirmation bias is the tendency to notice, seek out, and believe information that supports what we already think. It filters the world through a lens of existing belief. And it doesn’t care whether those beliefs are true or useful.
In leadership, this can look like:
- Doubling down on a strategy even when market signals are shifting
- Ignoring difficult input from team members that doesn’t fit the ‘culture’
- Funding ideas that feel ‘right’ rather than ones backed by evidence
But here’s the twist: Confirmation bias isn’t always the villain. It can reinforce conviction when speed matters, it can stabilise a team during chaos, and it can help leaders project confidence and unify direction. The dangerous part is when you confuse confidence with clarity.
Unchecked, this bias becomes a growth trap because you are repeating what worked yesterday while the world moves on today.
Imagine this; a founder believes their product should only be sold direct-to-consumers because it aligns with their original vision. Despite three failed quarters and strong distributor interest, they reject the wholesale model outright because moving towards the unknown is uncomfortable.
Now this; a CEO maintains belief in a hybrid working model after testing it thoroughly and seeing internal productivity rise, even though external opinion suggests returning to the office is the trend. Here, confirmation bias helps them stay the course with confidence because there’s viable data to back up the decision.
Why leaders are especially vulnerable
The higher you climb, the more filtered your world can become. Leaders naturally rely on their intuition, past experience, and pattern recognition. The problem is that intuition is shaped by past successes, not future uncertainties or opportunities.
For example
- Past wins reinforce the belief that your instinct is always right
- People around you start self-censoring their views
- You are time-poor and forced to rely on pattern recognition
And here’s the problem; if your authority isn’t routinely challenged, you can start mistaking silence for alignment.
But this isn’t all bad. Leaders who carry conviction through storms provide essential stability. There’s power in a clear voice when others are panicking, always remembering that stability should be built on reality, not reinforced assumptions.
Imagine this; an MD dismisses a team member’s warning about declining customer retention because “our clients are loyal,” based on past NPS scores. They ignore fresh data showing a shift in sentiment, a competing innovation, or a new competitor business.
Now this; a business owner who’s seen multiple market downturns uses their historical insight to guide their team through a cashflow squeeze, choosing not to panic when early indicators dip, because they’ve seen recovery patterns before.
Real-world symptoms of confirmation bias in business
When bias creeps in, it can distort everything from recruitment to strategy.
Symptoms include:
- Pet projects that linger long after they’ve failed to deliver
- Recruiting people who reinforce your worldview instead of challenging it
- Rebranding instead of listening to why customers are leaving
- Market research that’s commissioned to prove a point, not test an idea
But sometimes, sticking to your vision despite early resistance pays off. Think of entrepreneurs who launched category-defining products that were initially dismissed. No-one wanted a smartphone until Apple created a market. Visionaries often need to ignore the crowd, and plan and strategise forensically. Always remembering that vision without testing is just ego in a costume.
Imagine this; a CMO insists the latest campaign is working because website traffic is up, despite clear signs that lead quality is down. They downplay the drop in conversions believing the marketing part is working, so it must be something else.
Now this; a startup founder believes strongly in a niche market, and although early traction is modest, they use qualitative feedback to refine messaging and ultimately unlock a loyal user base. Their belief pays off because it’s tested, not assumed.
The cost of confirmation bias
When unchecked, confirmation bias delays learning. It means problems are diagnosed late, strategies are not adapted, and top talent becomes disengaged because honest input goes unheard.
It doesn’t just cost money, it costs momentum. You miss pivot points, you lose relevance, you frustrate your top talent, and eventually, you look up and realise you’re building the perfect solution to last year’s problem.
However, a consistent narrative can energise your team and keep the business grounded in purpose. Look out for the warning signs when your narrative begins to drown out new data driven opportunities.
Image this; a growing business ignores employee feedback on burnout because “we’re all just working hard and pushing through a difficult time.” Months later, attrition spikes, and culture cracks appear. Before you know it, what was an opportunity to pivot becomes a roadblock that’s harder to breakthrough than it needed to be.
Now this; a director stays committed to a long-term innovation program despite early ROI doubts. They’ve done the research, set up the KPI’s, and given it the right framework in which to mature. Confidence in their decision helps the team stay aligned.
Practical ways leaders can combat it
Awareness is step one, but it’s not enough. You need habits.
Here are some of the things I’ve found work well:
- Red teams: task a group to deliberately find flaws in your plan
- Devil’s advocates: assign someone to argue the opposing view
- Break something: give your new recruits something to break
- Diverse teams: not just in demographics, but in thinking style (DISC)
- External challenge: interim MDs, advisors, NEDs with a licence to push
- Data over gut: measure what matters, not just what’s visible
The good news is that these practices don’t weaken your authority. They sharpen it, and they signal strength, not uncertainty. The danger being when you treat challenge as a tick-box, not a mindset.
Imagine this; a board makes an acquisition decision without external review because everyone feels good about it, and it’s looks good on paper. Six months later, integration fails due to a mismatched culture.
Now this; a leadership team regularly runs pre-mortems before launching new services. By imagining failure in advance, they uncover weak assumptions early and adapt fast. Remembering to plan for worst case, expected case, and best-case scenarios.
A personal reflection
Back in the early noughties I backed a strategy I believed in so strongly I didn’t see the flaws until they were costing us serious ground – literally in my property business! A competitor took a more agile route, tested assumptions early, and won the space. It was uncomfortable and I had to eat a great deal of humble pie, but it was an invaluable lesson.
By bringing in external advisors, I was able to gain a perspective I just couldn’t see. They didn’t just question the strategy, they helped me build better questions around it. We realigned, streamlined our finding process, and moved forward faster.
Imagine you’re preparing to launch a new service line. You’ve committed budget and messaging, but initial data shows a cold response. Do you pause and test, or do you push through because your instinct says it’s right?
A final challenge to you
Pick one key decision you’re currently backing and ask yourself:
- What would prove me wrong?
- Who have I not asked because I think I already know the answer?
- If someone else were in my shoes, what might they see?
You’re not weaker for questioning your instinct or logic. You’re stronger for designing challenge into it. This isn’t about doubting yourself. It’s about choosing to lead beyond your own blind spots.
Confidence is powerful. But confidence plus challenge is unstoppable.
Call me for a chat – happy to share more and help where I can.
Work with me:
I help owners, founders and leaders create a scalable business that works without them, build a world-class team, and 10x profitability. Book a call with me here to see if we could work together.
Remember, there are only three types of people – those who make things happen, those who wait for things to happen, and those who talk about why things don’t happen for them. Which one are you?
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