The contemporary North American performing arts center (PAC) is a highly evolved business. While modern arts centers date back only to the 1960s, in their sixth decade these organizations are now sophisticated enterprises run by highly trained professional staff and guided by deeply engaged boards. In an environment of dramatic change that includes rapidly changing communities, a fast and complex redefinition of the marketplace, and new realities of operating economics, it is critical that all aspects of the organization are highly functioning, well organized, and effective.