Religious organizations are in evidence, management models varied and are no guarantee of success. Management theories are generalizable to churches, but they are also specifically specific and face challenges (in this they are not unlike profit-making companies). In the Administration, a research on such organizations is reduced, and its magnitude much smaller than is the life of good portion of humanity and of society in general. For that reason, this article contemplates the organizational decline. It focuses on the Universal Church of the Kingdom of God (IURD) in the period between 2000 and 2010, its context and its specificities. A case study was carried out, with bibliographic description and support. The results suggest, as from a decline in the leadership of the IURD, the concurrent competition of churches with similar and newer characteristics (especially a World Church of God's Power) and the growth of "generic" Evangelical believers, E of people without religion.