The problems of changing a school system require a systematic approach that coordinates various efforts within the system. A model, developed by Professor Goodson and his staff, deals with the design of a change-agent team and the work that such a team might perform. The model requires four functions to be performed: Diagnosing problems, planning action, transforming strategy into action, and evaluating action results. A team is expected to plan for and manage specific changes and to facilitate and perpetuate an innovative climate in a school system. The application of the model to three Wisconsin school systems is outlined as an illustration of the early operation of change-agent teams. Plans for evaluating the effectiveness of the team approach and results from the activities of a change-agent team are reported. (AUTHOR/HW)