Essentials of supply chain management is written especially for two groups of readers. It is written for the senior executive who must decide what kind of supply chain their organization needs and how much to spend to get it. It is also written for the manager who is or soon will be responsible for building and operating some part of his/her company’s supply chain. The concepts and techniques presented here serve to create a common frame of reference that both senior executives and line managers can use when communicating with each other about supply chain management issues.