What Six Sigma Actually Is
Six Sigma is a data-driven methodology for improving processes by identifying and eliminating the causes of defects and variation. Developed at Motorola and popularised at General Electric under Jack Welch, it uses a structured approach, typically the DMAIC framework: Define, Measure, Analyse, Improve, Control, to create measurable, sustainable change in complex systems. A Master Black Belt is the highest level of Six Sigma certification, indicating deep expertise in both methodology and the leadership of change programmes.
What This Brings to Coaching
On the surface, Six Sigma and executive coaching look like they belong in different worlds. One is quantitative and process-oriented; the other is relational and exploratory. In practice, the disciplines complement each other well. Six Sigma thinking trains you to be precise about what you are trying to change, rigorous about measuring current reality, systematic about identifying root causes rather than symptoms, and disciplined about sustaining change rather than letting systems drift back to old patterns. All of those habits of mind are assets in executive coaching. When Peter works with a client who is struggling to make a decision, he brings a systems-thinking perspective that helps identify what is actually driving the indecision, not just its surface presentation. When a client wants to change a leadership behaviour, Peter brings a change management perspective that goes beyond intention to the structures, routines, and accountability mechanisms that make change stick.
Peter Craen is an executive coach and mentor based in Burgess Hill, West Sussex. He brings 40 years of real business experience across financial services, health, energy, and more. He holds a Six Sigma Master Black Belt, was named Coach of the Year at Zurich Financial Services in 2005, and is completing his ILM Level 7 in Executive Coaching and Mentoring.
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