They own them all now. They inherited Hooker and Tillman along with those you think can't play.
The coaches can be wrong. I think respectful criticism of coaches and players is in bounds and part of the costs of being at a high profile, strong fan base program. That said, the coaches had every opportunity starting in spring to replace McCullough and Flowers. They have bodies and guys who can play safety like Charles and Walker. They chose to believe in McCullough and Flowers... almost exclusively based on the lack of subs in the Pitt game.
The performance vs Pitt was greatly improved. I think it is correct in saying the D played closer to their ability than the O. But I still have more questions about the DC and his scheme/playcalling than the players who are trying to execute.