Is it that deep? You've got the three guys at the top who clearly go early (Williams, Daniels, Maye). Then you've got several who could go anywhere from middle of round one to fourth round (Penix, Nix, McCarthy, Rattler). Then another tier beneath them (maybe Hartman, Milton, Pratt). Whom have I left out? A number of guys who might have been in this class elected to return to school.
Given the hit rate on QBs in the first round and those who go lower, there's no guarantee a single successful franchise guy will come from this class. If one of the top three pans out and everyone else became a backup or got cut within a few years, that would be par for the course. Amazing to think back on the "83 class which had Elway, Marino, Kelly, Eason, Blackledge and O'Brien. Three hall of famers and arguably six franchise guys. Blackledge fell short of expectations given his lofty draft status but all had a number of decent years. Far better than what we've seen of late.
2021 was said to be similar because there were so many highly rated guys and one, Lawrence, was, like Elway, said to be a generational talent of the kind that comes along every 25 or so years. That was probably true of Elway, though he probably wasn't be of his class. If redrafted, my guess is Marino goes first. But Lawrence doesn't look generational three years later and none of the other guys who went in the first round appears to have a QB1 future. Maybe Fields. Maybe! Wilson's a bust. Lance is a bust. Mac Jones is a bust. Maybe one of those guys will surprise yet but at this point no one expects it.