We have no idea if he would have done well. Like I said, I trust Frost will get things done, but Riley was never given a chance by much of the fanbase (and if rumors are to be believed the AD wasn't doing much to help either) while many of those same people are still backing a coach who has shown no success at Nebraska. Its homerism at its finest.
We knew EXACTLY what Riley was going to do. .500. That’s his career ceiling. If he flipped a coin, it would come up heads half the time.
He had ZERO POTENTIAL UPSIDE.