What good is a great developer if he doesn’t have anyone to develop?
Since he is a great recruiter, that obviously isn't going to be a problem getting anyone to develop. The question is, once he gets them here can he develop their technique, foot work, correct/improve throwing motion, read defenses. These are things that he would be expected to do as a position coach. At least that's what position coaches were responsible for from what I remember.
Again, you can have a whole staff of used car salesmen, but can they actually finalize & seal the deal? I believe he would make a good recruiter, but still don't feel he would be able to do those other things. It obviously doesn't matter, because this is pretty much a done deal. So it is what it is.
As I have said before, I truly hope he proves me completely wrong and becomes the great QB whisperer we all were lead to believe Cumbie was suppose to be.