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Dean Leak

Dean Leak

Dean Leak High performance culture and leadership coach

Dean Leak
Dean Leak's Biography

Most organisations treat conflict as a threat. Dean Leak proves it’s a competitive advantage.
He is an Olympic performance strategist and international keynote speaker who teaches leaders how to turn tension into progress. His core message is bold and practical: High-performing cultures aren’t the ones without conflict, they’re the ones that know how to design it. Dean brings a rare blend of insight from three high-performance arenas: Olympic sport (pressure-tested performance), British Military & UK Government (high-stakes decision-making), FTSE 100 boardrooms (complex organisational leadership).   Across all three, he has seen what happens when pressure rises: teams either break… or break through. The difference is not disagreeing less or agreeing more, it’s Disagreeing Well. Through his Disagreeing Well System™, Dean inspires organisations to build cultures where people speak up, challenge thinking, and work through discomfort without damaging trust. The result is momentum, the kind that drives innovation, accountability, and sustained high performance. Dean’s clients include Olympic gold-medal teams, Commanding Officers in the British Army, Senior Government Advisors, and global organisations such as IBM, LinkedIn, L’Oréal, Baker McKenzie, Specsavers, and Air New Zealand. His approach blends lived personal experience, elite performance science, behavioural psychology, and practical leadership tools to enable courageous conversation and effective decision-making. Trained by Professor Steve Peters (The Chimp Paradox), UK Special Forces leaders, and a leading hostage negotiator, Dean is known for his grounded, human-centred approach. In elite sport, he helped Olympians build mindsets that thrive under pressure. Today, he brings that same clarity and emotional intelligence to business, guiding teams from avoidance to alignment, and from politeness to progress. His keynote, Disagreeing Well: The Hidden Superpower of High-Performance Culture, challenges the myth that a “positive culture” means keeping the peace. Instead, Dean shows how healthy friction is the fuel for growth, innovation, and winning together.

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Dean Leak Speaker Solutions

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Dean Leak Keynote Topics
Disagreeing Well: The Hidden Superpower of High-Performance Culture

We so often hear of conflict resolution, but not enough about conflict readiness. In this talk, Dean brings to life the 5 powers of disagreement that turn conflict avoidance into performance culture through the art and science of productive disagreement.

During the talk you’ll learn:

-High-performing teams design conflict, they don’t avoid it.
-Progress comes from challenging well, not agreeing more.
-The 5 Powers of Productive Disagreement turn tension into momentum.
-Healthy friction fuels innovation, trust, and accountability.


Leading Through Change

Change moves fast. Most organisations are experiencing Emotional Jet Lag: the gap between the speed of organisational change and the speed of human adaptation. Dean shows us how to turn a group of individuals into an adaptable team delivering sustained excellence under pressure.

During the talk you’ll learn:

-Most organisations suffer from “Emotional Jet Lag.”
-Change demands emotional regulation under pressure.
-Psychological safety and accountability must coexist.
-Courageous conversations drive sustainable excellence.


High-Performance Culture: Inside Gold Medal Olympic Teams
What do the world’s most elite teams have in common? In this talk, Dean educates us on how to turn a group of individuals into an adaptable team delivering sustained excellence under pressure.

During the talk you’ll learn:

-Talent doesn’t win, culture does.
-Mindset training equals performance training.
-Pressure reveals culture.
-Challenge and support create excellence.

Building mental fitness

Using Dean's examples of working with Olympians and Commanding Officers in the British Army he'll explain how to train your mind to build mental resilience under pressure.

During the talk you’ll learn:

-Mental fitness is trained — not inherited.
-Resilience is built before pressure hits.
-Regulate emotion to lead under fire.
-Train the mind like you train the skill.


Imposter Syndrome
Imposter syndrome is your superpower. Dean educates us, through his lived and learned experiences, in turning doubt into career success.

During the talk you’ll learn:

-Self-doubt signals growth.
-Doubt is data, not danger.
-Reframe fear into focus.
-Confidence is action despite uncertainty.
Dean Leak
Dean Leak's Biography
Most organisations treat conflict as a threat. Dean Leak proves it’s a competitive advantage.
He is an Olympic performance strategist and international keynote speaker who teaches leaders how to turn tension into progress.
His core message is bold and practical: High-performing cultures aren’t the ones without conflict, they’re the ones that know how to design it.
Dean brings a rare blend of insight from three high-performance arenas:
  • Olympic sport (pressure-tested performance),
  • British Military & UK Government (high-stakes decision-making),
  • FTSE 100 boardrooms (complex organisational leadership).

 

Across all three, he has seen what happens when pressure rises: teams either break… or break through. The difference is not disagreeing less or agreeing more, it’s Disagreeing Well.

Through his Disagreeing Well System™, Dean inspires organisations to build cultures where people speak up, challenge thinking, and work through discomfort without damaging trust. The result is momentum, the kind that drives innovation, accountability, and sustained high performance.
Dean’s clients include Olympic gold-medal teams, Commanding Officers in the British Army, Senior Government Advisors, and global organisations such as IBM, LinkedIn, L’Oréal, Baker McKenzie, Specsavers, and Air New Zealand. His approach blends lived personal experience, elite performance science, behavioural psychology, and practical leadership tools to enable courageous conversation and effective decision-making.
Trained by Professor Steve Peters (The Chimp Paradox), UK Special Forces leaders, and a leading hostage negotiator, Dean is known for his grounded, human-centred approach. In elite sport, he helped Olympians build mindsets that thrive under pressure. Today, he brings that same clarity and emotional intelligence to business, guiding teams from avoidance to alignment, and from politeness to progress.
His keynote, Disagreeing Well: The Hidden Superpower of High-Performance Culture, challenges the myth that a “positive culture” means keeping the peace. Instead, Dean shows how healthy friction is the fuel for growth, innovation, and winning together.

Dean Leak is ready to inspire your teams!
To invite this speaker:

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Dean Leak testimonials

PWC Director

PWC Director

100% the most powerful workshop I've ever attended.

UK Gov

UK Gov

I have attended many team workshops in my 20+ years and with my hand on my heart I have never found any of them as powerful and effective as your session today.

L'Oreal

L'Oreal

We saw an incredible 22% increase in team productivity.

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