ESPN breaks down the quarterbacks into tiers. Irons is listed in tier 22 - along with several other MAC quarterbacks.
https://www.espn.com/college-football/story/_/id/33939006/ranking-all-131-college-football-quarterback-situations-tiers
Don't forget there are two sides to the coin. Ali averaged 14 ppg, but also played good defense. Even if the guards can pick up the offensive slack, we still need an athletic wing player to play defense.