Steve Young
Situations mean everything in football. A player can have all of the talent in the world but it doesn’t help if they’re on a dysfunctional team. Young discovered this when he played for the Buccaneers. He threw 11 touchdowns and 21 interceptions in two seasons before he became a full-time backup.

Finally, they traded him to the 49ers and Young underwent one of the greatest career revivals ever. He replaced an injured Joe Montana in 1991 after four seasons as a backup. Then he never looked back as he became a three-time MVP, a Super Bowl winner, and a Hall of Famer (via Sportskeeda).