You can find a quarterback in other places besides #1 overall. Those guys bust as much as the next guy. Lamar, Jalen, Russell, Purdy, Cousins, Rodgers, Dak. Most of the league had a chance at all of those guys minus Rodgers. But still like 20 something teams passed on him. Mahomes was the 3rd QB taken in his draft.
Look at how Philly and San Fran (probably the two best rosters in the league) did it. They built the roster, then found the QB. It can be done in reverse. Trade that #1 pick for a haul IMO. If you trade it to a team in the top 3-5 you could find yourself picking first 3 years in a row.
If you are absolutely sold on a guy at the top. Pick him. Don’t pick him because you think you have to move on from Fields.