My view is that should Nebraska fire Bo, the next guy may do great and find another level to rise to. However I would fear that the next guy would turn into a Bob Stoops. Win a national title within two years but then trail off again into irrelevance in the national championship picture.
Re-establishing a program isn't easy. A strong argument could be made that Bo has done so already. Unless there is a sure-fire replacement that could do better, why disrupt an above average program?
Wow a national championship and 8 conference championships? What a thing to be concerned about "falling" down to.
Won a national championship with a large contingent of another coach's players. Since then, he hasn't been able to reach that level and has been somewhat trailing off (National title, then a few BCS games then lower bowl games).
And the falling down I'm referring to is the fact that Bob Stoops is currently sitting on the proverbial hot seat in Norman. Yes the Sooners seem to be in a "better" spot in the national championship picture but their fans are getting antsy. Bo is just more of a polarizing figure and the national media love those types of coaches.