Yann Le Roux to Toronto-based exec VP-managing director Havas-owned interactive agency Media Contacts, a unit of MPG, from managing director, Media Contacts, Paris. This is the first Canadian office for Media Contacts.
Simon Guild to chief executive, MTV Networks Europe, London, from deputy chief executive and exec VP.
David Leonard to president of the Toronto office of Omnicom Group's DDB Canada, from president-CEO of Havas-owned Arnold Worldwide, Toronto. He succeeds Jim Herrier, who becomes a consultant at Queue Communications, an Omnicom corporate office for Canada.
Ron Mather, 55, to chairman, Omnicom's Clemenger BBDO, Melbourne, from executive chairman, Grey Global Group's Grey Worldwide, Melbourne. He succeeds David Blackley, who retired a year ago.