Honestly, I think Michigan's complete and total mishandling of the events AFTER the game are more insulting to the fans and sport than anything they did Saturday.
Bdub has a point, this happens often in football, far more than it should and far more than is ever publicized. If this game wasn't nationally televised, do we even hear about it? Probably not. Sometimes things get missed and a weird sequence of events happened that forced Morris back into the game. I highly doubt anyone could have anticipated QB1 going out with a head injury, QB2 having to leave for 1 play because of the (idiotic) helmet rule and needing someone to take a snap. Did Hoke completely botch the situation? Absolutely. Call a timeout and get Gardner back in there. Did the training staff completely botch the situation? Absolutely. They have one job and failed at it. It was a total failure by everyone and inexcusable in modern football...
... that said, it would have been a fairly easy fix by Michigan to simply come out and say they fucked up. Immediately. "We mishandled the situation, we didn't realize what had happened and an unfortunate sequence of events occurred that we failed to anticipate. Our number one concern is the health of Shane Morris and he is getting the best medical care we can provide. We apologize to him, his family, his teammates and the fans and supporters of our program for our failure. This will never happen again." The end.
That is all they needed to say. Come out and say they horrifically botched the situation and that is that. It doesn't turn into a week long story and most of all, you don't come off as a bunch of incompetent fools trying to lie your way out of something. Every single person watching that game in the stands or on TV could see what happened, every person who watched a replay knows what happened and Michigan STILL tried to lie their way out of it and throw everyone under the bus. That is far more insulting to Morris, the team, the program and the fans than anything that happened Saturday. The mishandling of the situation Saturday alone probably wasn't enough for Hoke and Brandon to lose their jobs. The mishandling of the situation Saturday combined with the mishandling of the situation in the days after are more than enough for Hoke and Brandon to lose their jobs.
That doesn't even take into account that Michigan is god awful at football, but I care far less about that as a Nebraska fan.