This book details a proven recipe for applying Lean, Six Sigma, and the Theory of Constraints in a manner that will maximize return on investment, cash flow, and net profits. The book presents a collection of stories that illustrate best practices for finding and fixing common issues found in today's organizations. In-depth case studies illustrate a range of scenarios at a call center, pharmaceutical company, automotive parts supplier, and metals distributor and processor. The book covers simple, yet effective, statistics and explains how Minitab can be used to simplify and speed up data analysis.