Okay, so name that person. Lawrence and Fields are gone. Do you believe in Jones, Trask or Wilson over Lance? Or do you think you can land a pro QB via trade or free agency? QBs like Garoppolo, Rodgers or Stafford could well be on the move, but Carolina is an extremely unlikely destination for any of those guys via a trade. You've already moved on from Cam, so he's not coming back. You could opt for a reclamation project like Darnold, Jameis or Haskins and hope they realize their potential under Rhule. You might could make a good case for bringing in Darnold for a mid round pick under Rhule's and Bridgewater's tutelage. Jameis is the opposite of Bridgewater and could be interesting. I wouldn't touch Haskins. Tyrod Taylor could be available, but he's essentially Bridgewater (game manager and mentor) with much better wheels. You also could go after Dalton, but why bother at his age when you are building a young team. Maybe Carr or Mariota? Who knows wtf Gruden is thinking.
The way I look at it, I think Rhule is a good coach. He did wonders at 2 college programs, and Carolina's roster was considered to be about the worst in the league going into the season, but they've competed pretty darn well. I seriously doubt you are going to have a pick in the 4-7 range in the next few years. So if you're going to draft a QB, this is probably your best opportunity. I haven't watched BYU, but I don't trust Trask as a legit NFL starter, and Mac Jones has the best OL and WRs in the game - kinda hard to know how good he really is.