What else can the guy do?
Notre Dame offered him a whole lot more money, a much better college and a much better opportunity. Loyalty is important, but this is the man's livelihood - the man's career. There is no way you can agree to be Notre Dame's coach and then spend a month coaching at Cincinnati while also taking care of Notre Dame. You can't do it.
Notre Dame couldn't hire Brian Kelly if he wasn't going to be able to work for the school until after the Sugar Bowl. You can't afford to put in place a coaching staff after January first while still trying to recruit and find coaches and all of that. Can't do it.
You also can't coach Cincinnati while coaching Notre Dame. You can't sit in Cincinnati, while calling up coaches and players to recruit for Notre Dame and asking the responsibilities of two colleges to be placed upon his shoulders isn't fair either.
Does it suck for Cincinnati's players? Of course.
Does it suck for Brian Kelly? Yea. It's requires you to assume Brian Kelly is inhuman to believe that Brian Kelly ISN'T disappointed that he won't be able to coach HIS kids in the bowl game.
But you can't ask a man to give up a better career, a better life, a better paycheck all in the name of a month in a game that doesn't matter.
You can call him an *******, but it's unfair to do so. This is a man doing the best he can in a complex situation.