The aim of this article is to contribute to an improved comprehension of the relations between administrators and teachers. The main argument is that mutual dependency is an operational feature of a school organization. I analyse a school case that shows essential features of the interconnections between the parties. An extensive commitment to ICT combined with a commitment to free work forms created a vulnerable situation. The teachers' loss of control influenced the relationship between teachers and the administrators that after a while developed into tug-of-war bargaining. I employ a model of rational interaction in order to enlarge the repertoire of explanation that is an analytical tool that is little used in the literature about educational management. I conclude that the theory can indeed be a tool of analysis for understanding mutual dependencies, but that the rational reconstruction must include the importance that trust can have for management and leadership. Successful exertion of power requires relational trust.