From an outsider's perspective and a Buc fan, I think you guys are seriously underestimating Glennon. I don't blame you, cause he has limited work from a few seasons ago. But when he was starting, he looked good.
The only reason he isn't isn't the starter in Tampa now is because we had the #1 overall pick in a "can't miss QB" year and Glennon was still just getting his feet wet starting at the time. Was still very much a gray area.
I think as LOD said, him and Meredith will be good together. Guy has a career 2:1 TD:INT ratio (30:15), and that is under Greg f***ing "I set Tampa back 5 years" Schiano and Lovie who dumped Glennon cause Lovie sucks (you all know this) and needed a veteran Journeyboy QB with McCown.
To sum it up, I think if Glennon has decent coaching/OC (idk your guys situation there), I think he has top 9-12 QB potential. Not going to win you a SB, but if your GM can build properly, you guys could be right on the edge, first team out of the playoffs by final year of Glennon's deal.