The current focus on school leader preparation reflects the importance societies around the world are placing upon the goal of improving their educational systems. The investment of substantial new resources into leadership preparation and development activities is based upon the belief that school leaders make a difference in both the effectiveness and efficiency of schooling. Developing school leaders who do make a difference, however, requires a management curriculum that is relevant to schools, up-to-date in learning methods, and which draws upon knowledge from disciplines inside and outside of education. This article examines the implications that curricular trends in the development of business leaders may have for leadership preparation and development in education. The authors acknowledge, at the outset, that differences in the practice of education and business management require some differences in the content of preparation programs. At the same time, we argue for an integration of selected business-related understandings of organizational management that are highly relevant for the improvement of schools.