Well judging from his jump from last year to this year I would say his ceiling is pretty damn high. We were one play away from playing for a national championship this year. If not for those 2 fumbles we more than likely win that game. Quinn needs to get in the weight room this offseason and add about 15 pounds of good weight and that should help his pocket presence. It helped Colt a ton when he did that from his sophomore to junior year.
I don't know why you would want to start over at QB next year and have to rely on a freshman going into the first year in the SEC. Then you give Arch another year to develop which is not a bad thing at all.