While programs like OSU and ND are always just two years away from potentially opening, they don't appear to be opening any time soon. He better believe he can keep ISU humming at 8 wins.
I don’t there is any reason to think he can’t keep them at 7-5 to 9-3 in perpetuity until a job opens.
If his recruiting classes keep coming in the 50s there's plenty of reasons to think that. You miss on one quarterback or have bad injury luck then you get into trouble. LHC Bill Snyder made that look easier than it really was but that eventually caught up to him too, twice.
Campbell and Klieman both will need to recruit better to meet the demands of his fan base. #CyclONEnation is happy now but let them keep toiling on the fringes of the top 25, they'll turn. They will expect to be back in the Big 12 championship game next year. An 8-4 regular season won't feel nearly as good.
It's why I think any coach that has the ability to go to a school that affords them the opportunity to recruit better than where they are currently should always take that chance. As bad of shape as Michigan is in now they still have the #11 ranked signing class in the country.