Book excerpt: H. William Dettmer goes beyond the theory of constraints introduced by Eliyahu M. Goldratt in his best-selling books The Goal and It's Not Luck by describing the action steps that follow the theory. Loaded with application examples, these unique problem-solving tools will teach you how to analyze and arrive at a variety of solutions. Much of the content focuses on the author's understanding and interpretation of Goldratt's logical thinking processes. it clarifies the five focusing steps and teaches the mechanics of all the thinking tools.