As a fairly young arts manage at the ripe old age of 29, this concept was heavily discussed during my graduate work in arts administration.  For me, I believe one of the most important ways to improve the capacity of the "next generation" is for founders to make sure and share the history, passion, and knowledge with their staff and especially anyone who may be being groomed to take the reins should that time come.  Having a devoted founder is the staple of any good arts organization I would think, but unless the next generation is trained with that same fervor, the founder's knowledge is lost forever and the organization will ultimately suffer the consequences.