It is his second reshuffle in just four months and the biggest change sees Councillor Matt Kerr removed from his high-profile role as Executive Member For Social Care.
The move comes amid controversial plans to close day centres for people with learning disabilities.
A long running campaign has been protesting against proposals to shut three centres in Summerston, Berry-knowes and Maryhill.
Linn councillor Malcolm Cunning, current chairman of the licensing board, will be the new Executive Member For Social Care.
SNP group leader Graeme Hendry said: "It's clear Matt Kerr has been sacked from social work after his mishandling of the introduction of personalisation, and pushing through the closure of disabled day care centres, against the wishes of nearly all the carers."
"I hope the changes made at the top of Social Work mean a fresh approach.
"Councillor Cunning clearly has some bridges to build after some of his previous comments and I hope he does a good job of building them."
A spokesman for the leader's office said: "This mini-reshuffle arose because of the sudden death of Councillor George Ryan.
"Matt Kerr has moved to personnel, which he's ideally suited to because of his trade union background and the way he proved himself in the tough job at Social Work.
"Malcolm Cunning has been promoted to the top tier of councillors because he's widely respected and the excellent work he's done as chairman of the Licensing Board."