 McCormack played the full 90 minutes in a 1–1 draw with Chelsea at Stamford Bridge in the FA Cup third round on 3 January 2009, but missed the replay, which Southend lost 4–1.McCormack made 43 appearances and scored three goals during the 2009–10 season, but what would be his final season at Roots Hall culminated in the club's relegation to League Two.His contract was terminated by mutual consent on 24 June 2010.