Here is a list of physically fit college head football coaches:
Lane Kiffen--flubbed at USC, fred on the tarmac after a big loss to ASU
Karl Dorrell--Bruins were lousy with him, although they beat the Trojans once
Skippy Neuheisel--coached the best he knew how at UCLA, but he was a lousy coach for them.
Then there would be no gut to worry about.
Now winning football games might be difficult with any of the above.
IMO Helton is better than any of those three, he is an average coach. The three above were lousy coaches.