Every coach in the country would have ripped Golson a new one for the repeated mistakes he made this year. I would say that Kelly was too easy on him if anything. He should have been pulled for a series against ASU just to settle him down. Kelly was far more of a jackass to QBs in 2010/11.
As for Hendrix not being able to complete a pass against USC. That's on him. He had some type of mental block in that game.