Authors Pirasteh and Fox know what causes various improvement approaches to fail, and in response provide a new model that combines theory of constraints (TOC), lean, and Six Sigma into a unique program called TLS. This scientifically proven methodology improves results dramatically. The book is divided into two parts. The first is geared to senior decision makers—those who decide “if” their company should adopt a TLS approach. The second deals with the details of “how” and is directed at those responsible for implementing TLS. Readers who would like more depth on any section of Part I can go directly to the matching chapter in Part II. If your intention is to learn how to systematically improve quality, process reliability, and throughput while creating a wasteless enterprise, then this book is for you!