On 26 June it was announced that Crichton had left Priestfield and joined Cambridge United as a player-coach. In January 2007 he was loaned to King's Lynn until the end of the season, but remained as goalkeeping coach at Cambridge United. However, after Cambridge lost 5–0 twice in succession, Crichton was recalled from his loan, and was present in goal during the club record victory on 31 March 2007 (7–0 v. Weymouth). He was released by Cambridge in May 2007 and returned to King's Lynn on a permanent contract for the 2007–08 season, but was allowed to leave to join Brighton & Hove Albion as goalkeeping coach, to further his career. On 9 February 2009, he moved to take over as goalkeeping coach at Norwich City replacing Tommy Wright, after Bryan Gunn was appointed as manager. He left the club in February 2010, moving to Sheffield United to coach there, though was also registered as a player for emergencies for his first season. In July 2012 took up the goalkeeper coaching job at Championship club Huddersfield Town.