William G. Ouchi on decentralized management:

I had spent 35 years studying the management of very large companies, and one of the most consistent principles is decentralization. In a competitive world, you must make decisions in the smallest operating units possible, or you will go out of business…

…We have a research project under way now in which we’re interviewing 527 principals with local autonomy and visiting their schools. We’re focusing on inner-city high schools, which have proven in the past to be the hardest schools to improve. We’re finding that control over the budget gives principals control over three key school decisions: the staffing mixture, curriculum, and schedule.