Danny, a former Wales international goalkeeper, joined the staff as goalkeeping coach in July 2013, also registering as a player.
Born in North Wales, Danny clocked up nearly 200 appearances in two spells with Tranmere Rovers and also enjoyed four seasons as near enough a regular at Grimsby Town when the Mariners were in the second tier of English football.
He also had spells with Leicester City, Burnley, Middlesbrough and Sheffield United, playing more than 500 career games.
Capped by Wales at under-21 level and B level, Danny is also the proud holder of 16 full international caps.
He made his debut away to Switzerland in 1996 with his final cap coming 11 years later in Cyprus.