There are some existing networks and examples that can be leveraged. Lloyd Longfield and I worked in the early days of the Ontario Network of Entrepreneurs, and I would say that it's come a long way in the last 10 years. It's a series of regional innovation centres that offer a common programming, and the core notion is what Victoria just mentioned, which is that there's no wrong door.
If I'm an entrepreneur and I need help, I should be able to ask the nearest organization or the nearest mentor for help. If that's not the right door, then it's the responsibility of those who run these organizations to make the warm hand-off.