“In a company known for its inventiveness, separable, single-threaded leadership has been one of Amazon’s most useful inventions. We discuss it in chapter three. This is the organizational strategy that minimizes the drag on efficiency created by intra-organizational dependencies. The basic premise is, for each initiative or project, there is a single leader whose focus is that project and that project alone, and that leader oversees teams of people whose attention is similarly focused on that one project.”