For the OC at least, I don't think it's as bad a situation as people are making it out to be. No, a proven P5 coordinator isn't going to take it but there are talented guys looking for stepping stones. I'm not confident the OC is here long even if Frost saves his job, but you're being handed the keys to a team that was top 25 in yards and yards per play, not particularly turnover prone (1.5 per game), and somehow just 71st in PPG. That's against 4 of the top 14 YPG defenses in the entire country.
There's a foundation of racking up yards, they just need to find a way to turn the yards into more points and they get credit for a massive turnaround. Even if next year is more of the same they will likely having a year of coordinating a good offense on their resume, and can probably blame any shortcomings on the overall situation here. So it is not an opportunity worth bailing on a solid P5 coordinator position for, but I can see the appeal for rising G5 guys. In some cases they're probably looking short term anyway.