Needless to say I disagree. Sometimes not taking a promotion is the best step long term for a career. I've read where a OC or DC has declined an interview for a HC job because they didn't feel they were presented with an opportunity to succeed and given the tenuous between Rivera and JR, I know I wouldn't of had a warm fuzzy feeling about the job/opportunity myself.
I'm certainly not defending Shula as I felt it was a terrible choice but do you really think JR's phone was ringing off the hook for the position given his handling of Rivera and Fox. If you felt you only had one chance to show everyone what you could do, would you really have wanted to come here this year to prove it knowing that Rivera could be a fired at any time and with him, would go your one opportunity.