Alex Smith
Smith was selected by the San Francisco 49ers as the the first overall pick in the 2005 NFL Draft. After the 2012 season, Smith was traded to Kansas City. During his first season with the Chiefs, he led them to a stunning 9–0 start and their first playoffs in just three years. Smith would carry the Chiefs to a 11 game winning streak in 2015 and also their first playoff win since 1994.
Joe Theismann
Theismann played 12 seasons with the Washington Redskins, during this time he became a two-time Pro Bowler and took the team to consecutive Super Bowl appearances, winning Super Bowl XVII and losing Super Bowl XVIII. We’ll never know what he could have gone on to accomplish as he was forced to retire in 1985 after a devastating career-ending injury.