Prior to his front office career , Billy Beane played for the New York Mets ( 1984–85 ) , Minnesota Twins ( 1986–87 ) , Detroit Tigers ( 1988 ) , and Oakland Athletics ( 1989 ) .
Prior to his front office career , he played for the New York Mets ( 1984–85 ) , Minnesota Twins ( 1986–87 ) , Detroit Tigers ( 1988 ) , and Oakland Athletics ( 1989 ) .