The NFL is a different league. These College superteams beat up on a lot of bad teams. You see a lot of college QB's dominate within in a good system in College but it doesn't always translate well to the NFL vs pro defenses. Mahomes and Allen didn't go to college superteams but individually capable of taking over a game based on talent
You won't know til you get some talent around him. That's what you're supposed to do. Tua and Hurts. Allen with Diggs.