I agree Frank had better stats, but I also don't think he should have been fired in '03. Can you show me a coach with better stats that was let go for performance? I'm sure I can show you many coaches that received a raise for lessor performances.
Perhaps because they were at lesser programs? (Iowa)
Mark Richt just saved his job this year w/ a 10 win season. 8-9 wins and he was gone. Not many would argue w/ that. He has an overall record of 106-37 (74.1%).
Les Miles has been rumored to be on the chopping block numerous times...especially after the 9 win, 2009 season. He was 51-15 (77.2%) prior to that with an MNC.
Mack Brown had far more rumors flying around regarding his status as head coach after last year than Bo does. He was 133-34 (79.6%) at the time.
There are many more like this. These conversations are not unique to Nebraska. Ask Tommy Tubberville 85-40 (68%). He had won at least 9 games a season the prior 4 years including a MNC (sorta). 1 disapointing year was all it took. And that's in the SEC where competition is far more dominant that the Big12/B1G. The standard is not unrealistic.
None of those guys above actually got fired (Richt would have), but they all had a lot more accomplishments that Bo would have in my hypothetical scenario.
I view Bo's 13' very much like Richt's 11'.