The One Assumption Method™
When you change your assumptions, you change your culture. Instantly.
At the heart of The One Assumption Method™ is one foundational belief: Everyone is doing their best.
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It sounds simple. But when intentionally and consciously embedded into the way leaders think, act, and interact, this single assumption transforms behaviour, culture, momentum, and the results of an organisation.
Trust grows, people thrive, and results become inevitable.
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It shifts people from judgement to curiosity.
From blame to ownership.
From avoidance to directness.​
From silos to collaboration.
And from fear to trust.
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The One Assumption Method™ is a leadership framework designed to create confident leaders, collaborative colleagues, and committed employees: Fast.
The Model: Five Components That Change Behaviour, Culture, Momentum & Results
01
Compassion
See people through a human lens.
This is the anchor of the method: The conscious choice to believe that everyone is doing their best. It reduces defensiveness, fosters empathy, and builds the psychological safety teams need to perform at their best.
02
Composure
Regulate before you respond.
Composure is compassion in action.
Leaders set the emotional tone, and composure is how they create safety and clarity under pressure.
It’s grounded in self-awareness, emotional accountability, and the discipline to respond with purpose; not ego.
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03
Curiosity
Replace assumption with inquiry.
Curiosity thrives in the space created by composure. It’s how we ask better questions, keep communication open, productive, and blame-free, and focus on learning, not reacting. With composure, we uncover root issues, offer meaningful feedback, and truly understand the people we lead.
04
Clarity
Give it. Get it. Expect it.
Clarity is the outcome of curiosity.
It reduces confusion, eliminates second-guessing, and accelerates progress. When expectations and direction are clear, performance becomes more consistent, trust deepens, and collaboration improves.
05
Courage
Lead with honesty and vulnerability.
Courage is what brings it all together.
It’s the willingness to speak with honesty, ask for what you need, and hold yourself, and others, accountable.
Courageous leaders use vulnerability as a powerful form of influence: Grounded in compassion, fuelled by curiosity, sustained by composure, and delivered with clarity.
The Outcome
A Culture Where:​
Leadership is confident, influential, and human
Colleagues collaborate without politics and silos
Employees feel valued, trusted, and committed
Results come faster, without the friction
How We Deliver It
In two immersive, interactive days, we embed The One Assumption Method™ into the daily habits, conversations, and behaviours that define your culture and drive your results.
This workshop is a transformation: Behaviourally grounded, compassion-led, and outcome-focused.
