This paper was inspired by the following statement: the management of specialized organizations as schools, is critical for its effective development. The schoolmaster's essential and instrumental task is to provide suitable conditions to accomplish school aims. By observing some public schools realities we can see that schoolmasters do their management less for the main teaching activities than for the ruler burocracy external to schools. That's why we proposed decentralization of the decision making process inside public schools, aiming better adequacy to power relationships established inside the institution itself.