The club announced the Englishman's departure late on Monday afternoon. A replacement will likely be made after the weekend's trip to St Johnstone with Eddie May, Grant Murray and Steven Whittaker in interim control. A wide-range of names have been talked up as potential replacements. Scroll through to see who McBookie believe are in the running for the post.
9. Sergio Porrini
14/1. The former Rangers defender is the assistant with Albania. Photo: SNS
10. Michael O'Neill
14/1. Former Hibs player. One of the most respected British coaches for his work with Northern Ireland. Photo: SNS
11. John Collins
14/1. Former Hibs manager was last part of the Celtic coaching staff in 2016. Photo: SNS
12. Jim Magilton
12/1. Out of work since 2017 when he was Northern Ireland U21 boss.