John Avlon : Marvin Miller , who died Tuesday , brought free market competition to baseball . Avlon : When Miller was head of players ' union , the average player 's salary was $ 500 . Avlon : Players could n't leave teams , which Miller fought , calling it a form of slavery . Many professional players had to work a second job just to provide for their families . Avlon : He made it possible for players to be free agents , but he never played in the Hall of Fame .
John Avlon : Marvin Miller , who died Tuesday , brought free market competition to baseball . Avlon : When Miller was head of players ' union , the average player 's salary was $ 500 . Avlon : Players could n't leave teams , which Miller fought , calling it a form of slavery . Avlon : He made it possible for players to be free agents , but he never played in the Hall of Fame .