Craig James
Some people will know James for his TV work or his failed political career. But others will know him for being a one-hit wonder in the NFL. In his second pro season in 1985, James was a Pro Bowler with over 1,200 rushing yards and another 360 yards receiving while helping the Patriots reach the Super Bowl. But a shoulder injury at the end of the 1986 season was the beginning of the end for him. He never got past the shoulder issues and had just eight carries combined in 1987 and 1988 and never played again.
Of course, James appeared on ESPN as a college football analyst for many years and also did in-game work for CBS during NFL games. He left ESPN after the 2011 season so he could run for a seat in the U.S. Senate, only to be defeated in the Republican primary.