Description: This data set contains a number of variables on every NFL player participating in the 2014 season. Most of the variables should be self explanatory. Salary represents the average annual salary for the player under their existing contract. Exp represents years of experience. Pro Bowler represents the number of years the player was selected for the pro bowl. Champ provides the number of championship teams on which the player has played. Heisman represents whether or not the player won the Heisman trophy in college.