Jeff Fisher and Bob Stoops should have been arrested, Stoops more so. He put an amateur kid's life in danger. At least, Keenum gets paid (at least transparently) for his services. Both QBs thought they were Batman.
As far as Shirreffs goes, if he's cleared he should be able to play. He was on the sideline in warm-ups with Myers during the second half and he seemed like he was have a pretty lucid conversation with him and wasn't bothered by the noise or lights. He didn't "look" bad, but that's how football got itself into this predicament in the first place. If he passes the concussion protocol, he should be able to play. If not, see you in December, Bryant.