The Week: People news - Farrell to leave Publicis

John Farrell, the head of Publicis Groupe's specialised agencies and marketing services operations (and once tipped as a possible frontman for the communications giant after Maurice Levy's retirement), has resigned.

The one-time worldwide D'Arcy chief executive will step down in July next year, having been in charge of the group's so-called SAMS operations since 2003. Publicis has appointed Jean-Yves Naouri, its executive vice-president of group operations, to run the healthcare group, part of Farrell's remit.