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Brain Circuits

If you don’t know, say so: A self-check for leaders  

Published November 19, 2025 in Brain Circuits • 4 min read

Leaders are under pressure to project certainty and to know all the answers. Answer the following questions honestly, then check out the reasons why, if you don’t know the answer, it’s often better to come straight out and say so.

Checklist

1. When did you last say, ‘I don’t know’ in the workplace?

a. Within the last 24 hours or so.

b. I can’t remember the precise occasion.

c. Never.

2. How often do you answer a question in a seemingly confident way when you are not actually sure of the answer?

a. Never.

b. Occasionally.

c. Frequently.

3. In your view, how will people think differently of you if you say “I don’t know” when asked a question?

a. They won’t think any differently of me.

b. It depends – it won’t change how I’m seen by people close to me, but others may see me as lacking in some way.

c. They may lose a degree of trust in my leadership.

 

What your answers say about you

Mainly As: You are a confident leader and perceived as authentic by your team.

Mainly Bs: You’re getting there, but you need to remember the upside of being open with colleagues.

Mainly Cs: You fear appearing weak in the workplace and are very well-defended. Check out the tips below to see how admitting that you don’t know everything can have the opposite effect to the one you’re worried about.

 

6 reasons why it pays to say “I don’t know”

1. Build trust and bind people together

Trust is a vital commodity in leadership, but, according to numerous employee surveys, it is in short supply. Being honest by admitting that you don’t have all the answers is key to building trust with peers and reports.

2. Encourage a culture of learning

Reflection and learning are the lifeblood of an organization, but they are intangible and difficult to measure. Saying “I don’t have the answers now, but I’ll go away and find out” helps cultivate a spirit of learning.

3. Promote psychological safety

People often hesitate to show vulnerability because they think it’s a sign of weakness, but it’s a strength if you show a path forward. This helps create an environment where people can experiment without fear of failure or reproach.

4. Learn from mistakes

People learn from mistakes, and so can organizations – but you can’t learn from your mistakes if you don’t admit to them. Better to “fess up” fearlessly and invest in discovering real solutions, rather than try to cover up.

5. Build your leadership brand

Revealing that you don’t know everything is an instance of self-disclosure, a character trait that research has shown to be equated with authenticity – an invaluable quality in leaders.

6. Provide reassurance when facing the big unknowns

It’s better to reassure people that you understand their sense of uncertainty than claim to be all-knowing. This will only damage your credibility inside and outside the organization and make you a hostage to fortune.

 

Key learning

As a leader, you should be ready for tough questions, admit you don’t have all the answers, and outline a plan to learn together by saying, “I don’t know, so let’s explore and figure it out.” The benefits to your team, the organization, and your own peace of mind may surprise you.

Authors

Howard Yu - IMD Professor

Howard H. Yu

LEGO® Chair Professor of Management and Innovation at IMD

Howard Yu, hailing from Hong Kong, holds the title of LEGO® Professor of Management and Innovation at IMD. He leads the Center for Future Readiness, founded in 2020 with support from the LEGO Brand Group, to guide companies through strategic transformation. Recognized globally for his expertise, he was honored in 2023 with the Thinkers50 Strategy Award, recognizing his substantial contributions to management strategy and future readiness. At IMD, Howard Yu directs the Strategy for Future Readiness program.

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