Don't know if Corny would have been much better but JC would have really helped McKay and JC may have been able to get Alexsinas's head out of his butt. The problem would have been at PG. Hobbs was horrible. At 5'7" he played with his back to the basket and lacked quickness for a guy his size. Giscomb and Perno didn't get along and maybe Vernon would have emerged under JC.
One major issue was that Corny & Aleksinas couldn't co-exist (at least in Perno's limited vision of basketball offense) and to compound the issue, Dom decided to spend a lot of time going very big (Alexinas, Corny, McKay, Bailey and one of the midget pg's).
One thing that absolutely would have happened under JC is that all of Corny, McKay, Aleksinas and bailey would have been anywhere from ten (Bailey) to twenty five (Corny, McKay) lbs lighter during the season.
Under JC I image that Giscombe would have been exclusively a two but as a second ball handler on the court.
We could have done quite a bit more than we did with that squad but that is all water under the bridge.