Tony Romo has guided the Dallas Cowboys through ups and downs since becoming their starter quarterback in 2006, but he has been a constant at quarterback. Romo’s career passer rating is good for fourth best all-time, and he’s thrown for over 110 touchdowns in his career. Romo is also the Dallas Cowboy’s career leader in 300-yard games, 300-yard games in a season, passing TDs in a season, and passing yards in a season.