I expect Allen and Mayfield are locks to be successful franchise QBs. The Jets will have about $100 million in cap money to play with this offseason to add offensive talent and hopefully a competent coaching staff to develop Sam Darnell. Competent coaching quickly turned Jared Goff and Mitch Trubisky from "busts" to stars.
Rosen, who knows? Didn't look good but they're terrible on offense other than David Johnson and Larry Fitzgerald who is at the very end of his career. The Blank Canvass in Baltimore still has to learn to pass to be successful, and it's doubtful he'll ever be a competent passer.