If the market is literally dead for Fields then sign him, still take a QB at 3 if your guy falls to you, or trade back, get multiple firsts and start the rebuild. This team isn’t a few accusations away from contending, they don’t even have a solid roster that just needs a playmaker or two.
Worst that happens is Fields is absolute garbage and you dump him next season, best case is he overperforms and you can either resign him or trade him. Brissett is a backup, Bailey probably doesn’t belong in the league so you need somebody to start, still