Ten years from now, if ISU Football isn't being described as "regional power", my next hope would be "Stepping stone for coaches".
I wouldn't view that as a slam. Traditionally, your coach gets hired away only after you win a bunch of games. If you lose two or three coaches in a row to better gigs, it means you have won a pile of football games.
The fact that Gene lost 3.75 games for every one he won wasn't a deal breaker for Auburn makes this an anomaly, an outlier.
From here, I have a hard time seeing how becoming a stepping stone wouldn't be an improvement.