Résumé
In Information Systems, few researchers studied the influence of mimetic practices of project managers. Indeed, IS project managers are observed as trying to apply "standard methods" or "best practices" observed in the business sector or recommended by experts. At the same time, they are forced to consider the specific context of the company they are working for and the needs and requests expressed the stakeholders. In Information Systems, few researchers studied the influence of mimetic practices of project managers. So, the question is raised concerning their autonomy in their way to balance this double influencing phenomenon. The paper reviews neo-institutional theories, enhances their sociological approach and present possible "institutionalized practices" of IS project managers. After it presents a research perspective related to the specific cultural context of our research field: a French educational religious institutions.