I've been saying this for a while now. I don't think Ayo was the same after his injury. It could be that he was never that comfortable with the mask or that there are still lingering after effects from the concussion that have affected his vision, balance and mood not enough to get him held out but just enough to make him less effective.
I really hope he gets some rest and gets fully healthy.
That being said, Illinois with not-100%-Ayo was good enough to make the Elite Eight. We ran into an Elite 8 caliber opponent in the second round, they imposed their gameplan on us and we could do nothing to stop it.