"People know I have an affinity for the club and it's great to be back at a club I think is going places, especially with the manager that is in place, " he said.

BBC: Walsall appoint Hutchings as boss

Mowbray has spoken of his "affinity" with the club's fans who sent him "thousands upon thousands" of letters of support at a time he said his life was "decimated and empty".

BBC: Mowbray the natural leader

McGhee is also a former Celtic player, while Coyle is a lifelong fan of the club and Stark suggests that having an affinity with the fans is a great help taking on such a job.

BBC: Stark reality facing Celtic boss