I thought about adding that, but didn't. I was going to continue by saying Ford's dealers are cannibalizing themselves by over 'covering.' The customer 'radius' of each dealer overlaps with each other. This as you said, causes fewer sales at each dealer, resulting in lower profit, less finacially sound, weaker dealers.
Ford, as it is doing with the rest of it's operations is trying to cut out the excess dead weight, and will do this with it's dealer network. It will slowly trim out the struggling dealers until it sees fit.