Six Sigma works exactly as advertised on the factory floor it was built for. This book is about everywhere else. A Master Black Belt sat through his own certification and heard himself ask the instructor one question: would this make my job easier? The answer was no. What followed was a career spent watching the same statistical toolkit handed to fleets of assets too small, too different, and too expensive to fail for control charts and confidence intervals to mean anything. Built on a real, named turnaround at a De Beers diamond mine, where FMEA, criticality ranking, and daily walkabouts took the preventive-to-reactive maintenance ratio from 1.1 to 1.6 without a single control chart, this book reforges DMAIC around the asset in front of you instead of the population Six Sigma was built to describe. It is not an argument to throw out the credential. It is the discipline of checking whether the tool fits before the mandate gets written. Inside: Chapter 1 — The Factory Floor Chapter 2 — Sequencing, Not Statistics Chapter 3 — The Promotion and the Question Chapter 4 — The Room That Smiled Chapter 5 — Numbers From Nowhere Chapter 6 — The Curve Repeats Chapter 7 — The Room vs. The Floor Chapter 8 — Koingnaas Chapter 9 — DMAIC, Reforged Chapter 10 — It Traveled Without Him Chapter 11 — How to Change It Chapter 12 — The Number That Outlives the Project Chapter 13 — How Far It Travels Chapter 14 — The Five Questions Chapter 15 — The Answer Was No Appendix — The Field Toolkit Includes The Field Toolkit: three ready-to-use worksheets for ranking criticality, scoring project fit, and checking a project's savings against the asset's own remaining life. For maintenance managers, reliability engineers, and plant engineers in mining, oil and gas, utilities, and heavy manufacturing.