Graham Hinton has been axed as chairman of Bates UK, ending weeks of speculation about his future at the troubled agency.
His replacement is Toby Hoare, who was chief executive of Young & Rubicam until its merger with Rainey Kelly Campbell Roalfe.
Hinton, who took over the chairmanship of the then Bates Dorland in February 1996, presided over a turbulent period of managerial upheaval and reorganisation at the agency.
Earlier this year he had to confront internal opposition to his plans to transform Bates UK into a single integrated agency on which he had staked his reputation.
The changes, sparked by the purchase of the Blue Skies below-the-line consultancy, prompted the resignations of a number of senior directors.
Hinton, known for his laid back management style, is also known to have caused concern to Bates network chiefs over the amount of time spent away from the agency during his recent presidency of the Institute of Practitioners in Advertising, the agency trade body.