With the growing interest in Multi-Agent Systems (MAS's), the need of useful tools to design and make such systems evolve has become an important domain of research. In this context, on the one hand, we are interested in modeling the organization of a MAS and on the other hand, in adapting this organization to environmental changes during the execution of the system. In our sense, the organization has to deal with the structure of the system according to the definition and the allocation of responsibilities regarding execution of tasks among agents. In this paper, we present our organizational model whose core notions are roles and links. By combining this organizational model with the dependence theory, we explore a way that allows the detection of inconsistencies in the organization of a MAS.