Something I just remembered and double checked -
A member of the Louisville offensive staff received info in "Wakeyleaks" and passed it on to Grantham. UL's AD went ballistic. That, combined with the drubbing they took in the Citrus - and I can see Petrino asking Grantham to move on. Remember, Petrino is not a loyal guy and is willing to scapegoat anyone.....