One year they can run for 1,880 yards and 27 touchdowns then be out of the league three years later.
They have the shortest shelf life of any position in football, so they must get all the money they can while on top.
These are the top 10 running backs who are making less than they deserve.
This is the third of a three-part series examining the production of offensive skill players. To view the list of the most productive quarterbacks go to:
For the list of most productive receivers go to: