He subsequently joined the board at Cambridge United and took over as chairman of the-then Conference National side in August 2006. In September 2006 he acted as caretaker manager following the dismissal of manager Rob Newman and his assistant Tony Spearing. On 22 January 2008, on the same night that Cambridge United beat Droylsdon 5–0, Power resigned as chairman of the club, citing personal differences with fellow board members as the chief reason. In April 2008, Power joined the board of Cambridge's Conference rivals Rushden and Diamonds.