 Liddle worked as a football coach at Darlington College from September 2005 until June 2007.In February 2008, Liddle returned to Darlington as a youth team coach under first team manager Neil Maddison, after Mick Tait left the club.On 8 May 2009, Liddle and Madison became joint caretaker managers, after Brackenbury Clark and Company, the administrators of the club, had released the majority of the first-team squad and the club coaching and administrative staff from their contracts with immediate effect in order to save money.