Deruyter could really have a HUGE impact at Frenso St. 5 years ago at AFA, He (and Calhoun) turned around the Defense in one year. We went from 3 straight losing seasons to #2 in the MWC...all because of the quantum improvement in our Defense under Deruyter.
As for AFA at #4 - I think that's generous. We lost an excellent QB and some outstanding DB's and LB's. If we do end up 4 or higher, I think it will be because:
1) New Defensive Coordinator is much more aggressive.
2) Outstanding Senior Leadership - especially at QB with Fiery Connor Dietz.
3) RB Jon Lee. We lose Asher Clark, the #2 all time Rusher at AFA - but Jon Lee should just as good.