Initially I was all for Frost coaching in the bowl game, thought it would be great publicity for Nebraska as the entire game would be spent talking about Frost going to Nebraska. However, I could see Frost changing his mind near the end of the week when he speaks with UCF AD and not taking the opportunity to coach in the game. If he does, I could see him doing so more in a role where he is on the sidelines and not really coaching, but just there to cheer and root for the guys and give his input to whoever is the acting head coach.
Frost is working hard recruiting and getting settled in as the Nebraska head coach, I get that after Dec 20 he sort of has a break. But he probably wont have more then a week or so to prepare with the UCF team for their big bowl game vs Auburn. This is why I think he would be more on the sidelines as a motivator than a coach.