If Huntley was any good, his college productivity wouldn't have disappeared as soon as he went to the league.
Good QB's don't only play well in College.
The league is littered with QB's who played well on both levels, because they were actually good at the position.
This is not grounded in reality. Plenty of good to great college qbs are not great in the pros.
Being consistently great in college/pros is hard: Jayden Daniels and Joe Burrow did not become stars until their second year with LSU & fifth year in general. Baker Mayfield, Deshaun Watson, and Sam Darnold are talked about a lot differently than they were three years ago.
All to different degrees: Stetson Bennett, Marcus Mariotta, Sam Bradford, Colt McCoy, Vince Young, Kellen Moore, Mac Jones, JaMarcus Russell, Pat White, Troy Smith, Christian Ponder, EJ Manuel, Case Keenum, Matt Barkley, Aaron Murray, Josh Freeman, Brady Quinn, AJ McCarron, Brandon Weeden, Tim Tebow, Matt Leinart, Johnny Manziel, Jameis Winston, JT Barrett, Cardale Jones, Ken Dorsey, etc. professionally performed at a lower level than college — or barely even touched the field.