PT, I'll add this one thought. I hope, IF Tubs ends up leaving you don't hire Petrino. It has nothing to do with his coaching ability. It has everything to do with the way he runs a program.
I know for a fact that offering cash for recruits happened at Louisville. Not through just one player, not through just one source. And, not just players that happened to be a player we pursued. (I'll let you put two and two together on that one.)
I know of two players, and know this directly from a couple of sources I have with a very well known school on the left coast, that those two players were offered 15K to sign with Louisville.
Bottom line, if you see a move towards Petrino you might want to hold your breath.