OK, so you based it on an expectation around head coach performance. Makes sense.
I think an even more optimistic projection can be made when you consider schedule though. Over DeVito's time as a starter, he should get 2 more OOC wins this season. Next season's OOC has our P5 as Rutgers, then a bunch of tomato cans. If ever there's a time to go 4-0 OOC, that's it. The following season, we have Rutgers as the P5 and play @ Ohio, so we won't go on the road and should line up a tomato can at home. It's not crazy to speculate that outside of bowl games, there's a decent chance DeVito has already lost every OOC game he'll play in here. The rest are wins.
If that holds, it all comes down to how well we think we can perform in conference. If OOC goes the way we've "strategically scheduled" it to go, DeVito could have a losing conference record and top your projected 24 wins. You did say "or more" but I think there's a strong chance for upside.