He never called plays, never coached anything beyond OL.I dont think fraley has called plays, but Detroit has drafted well at OL and has one of the better ones in the league.
It makes sense when OL is the biggest weakness and keeping geno under 25 passes a game is playing away from his weaknesses.
Throwing 40 times a game with geno is leaving too many opportunities for mistakes.
Would be a great hire as offensive line coach, but completely unqualified as OC.