
6. Franco Harris
A true NFL legend, Harris spent 13 seasons in the NFL. He established himself as one of the greatest fullbacks ever throughout 12 years with the Pittsburgh Steelers. In sum, he should have ended his career there but didn’t. He moved for a year to Seahawks where he didn’t do much during his single season in Seattle.

Harris helped the Steelers to Super Bowl glory four times through an incredible dynasty in the ’70s. He was also the Super Bowl MVP in his first appearance in the showpiece event. Needless to say, he entered the Hall of Fame after his retirement. It’s just a pity he didn’t get to end his career as a one-franchise man with the Steelers.