Hotline: Michael Birkin has left the Omnicom Group

Michael Birkin, who in the past has been widely tipped as a successor to the Omnicom chief, John Wren, has left his post as the Omnicom Group vice-chairman and the Asia-Pacific chairman and chief executive to take a majority interest in the US events company RPMC.

He will be replaced by Tom Love, who adds the title of chief executive of Asia-Pacific, India, the Middle East and Africa to his existing role as the vice-president of Omnicom Group.