22. Emmitt Smith
It’s a recurring theme throughout this list, but some players should just quit after leaving the franchise where they built their name. Surely they must know that they’re not at the same level anymore and that they will struggle to work alongside new teammates and a new playbook? Such was the case for Dallas Cowboys legend Smith, who joined the Arizona Cardinals in 2003 instead of retiring.
As one of the best running backs in the league with ‘America’s Team,’ it was extremely strange to see him in a Cardinals’ uniform. But it was even weirder to see him play extremely poorly as he only rushed for an average of 48 yards per game. There is a loss of dignity when a legendary player underperforms with a new team. It would have been nice to see the Hall of Famer walk away with his head held high.