Robert Scott Horning wrote:
An example of this is with the American Red Cross, where they have largely volunteers that run almost every aspect of their organization.
http://www.redcross.org/static/file_cont4989_lang0_1762.pdf
I agree that the Red Cross is one example (but only one, and not necessarily the best one) of an overwhelmingly volunteer organization. I think it is very instructive to look at their board of directors, which consists overwhelmingly of people with decades of experience managing large organizations and providing strategic guidance to them.