I'm concerned about this as well. Some people say this shows that we're willing to give a coach time, the time he needs to get his recruits in and system running. This in turn should look good for future hires.
I actually think it may show the opposite. We are willing to give extra time to a coach who by normal metrics should be fired, but only if said coach is a former national champ- the golden boy.
Otherwise, we fire 9 win coaches or only give you three years if you're not one of us, so good luck if you're not Scott Frost.
Not saying you have to fire him this year, but it certainly would be a reasonable thing to do. Doubt any coach from any other team would question it.
Little afraid that by keeping him another year we're just doubling down.