In July 2009, Ling was appointed the manager of Cambridge United in the Conference National, succeeding Gary Brabin who despite a successful first season had left the club due to differences with the club's chairman, George Rolls.
In July 2009, Ling was appointed the manager of Cambridge United in the Conference National, succeeding Gary Brabin who had departed the club after a successful first season due to disagreements with the club's chairman, George Rolls.