The co-existence of two different organizational principles and structures was also characterized by considerable ambiguity about the boundaries between governance, management, and service delivery. Kouzos and Mico have described how each of these domains has its own structure, criteria for success, principles, and modes of work. In addition to the dual functions of service provision and advocacy, the mission and the goals of voluntary organizations are, as previously noted, typically diffuse. That the multiple goals of most voluntary organizations are on a high level of abstraction makes it difficult not only to evaluate their performance, but also to determine whether any “deflection” has occurred. The inherent diversity of purposes, size, and structure of voluntary organizations is a formidable obstacle to the development of typologies as well as generalizations about them as a class. The belief that governmental funds are inevitably corrupting and controlling persists, particularly in the United States and England, despite the paucity of empirical research.