Yep. Of course we will never know what would have happened last year with competent coaching, but better coaching would have better schemes, better game time adjustments and better coaching up of athletes, meaning a totally different team than last year. I don't think even Saban would have gotten more than 4-5 wins out of the team last year so I am not saying we'd have been in a bowl.
But I believe if we had a strong coach last year, 3-5 wins was certainly realistic and this year could have been entry into a bowl (i.e. 6 wins). I am not saying that is feasible this year (at least I highly doubt it), but despite less than top 25 talent, I believe a competent coach had he been installed last year along with his staff and his systems and training staff, etc. could have gotten us there this year, barely probably.
So, here is what I am prepared to say, if coaching matters as much as I think it does, and if HCMM is as good of a coach as I think he is, than he should get us to a crap bowl next year and this year see improvement across the board and at least 3 victories (with the roster we have which is an aggregate 60's or so).