At the end of the day, of course, it might be a combination of both. The volunteer retired person's enthusiasm and interest might be there initially; however, there might be other conflicting situations for a retired volunteer--family reasons, age, health, or other issues--that put that person's long-term commitment in jeopardy.
What one should foremost think about is the extent to which we are talking about long-term commitment. Nothing happens in development in a week. It usually takes several years to work. You have to start with building relationships. You have to start with building trust. You have to form that kind of rapport. If a person comes from an institution that already has that--let's say the Public Service Commission has already established a rapport with a partner institution--the individual attached to that of course already comes endorsed to some extent, but then you need the context and the parameters within which this individual works. You would have to have some kind of long-term commitment built into that, and it needs to be built into the design of this partnership.