Charles Wells marketing director Jason Wills has left after a year in the role, MCA understands.
Wills joined the company last May following a restructure, which saw Justin Phillimore promoted to chief executive of the family brewer and pub operator.
Wills had previously spent nine months as interim head of marketing at Cineworld. Prior to that he was marketing director at Merlin for over two years and was a senior brand manager at Heineken UK.
MCA understands that Charles Wells is currently recruiting for a replacement to Wills.