 On September 30, 1980, the 25-year-old McCormack made his major league debut with the Phillies.However, he would end up playing only 5 games total in the majors (in 1980 and 1981 with the Phillies), while spending most of nine years playing in the minor leagues in the Philadelphia and Detroit Tigers farm systems.McCormack went on to manage the Reading Phillies (AA Eastern League) and is currently the bench coach of the Long Island Ducks (Atlantic League).