3AM hired Josh Hill as senior writer and Cheston Kwan as senior art director.

WWE named Pamela J. Murrin as senior vice president, data strategy.

S4M named Frederic Joseph as CEO of its US operations.

Turner named Natasha Hritzuk as vice president of client insights and content partnerships research.

Kellen hired Greg Sherry as executive vice president of communications.

Yamamoto president Shelly Regan is retiring after 17 years at the agency.

Don Scales was named CEO of Investis.

DDB Worldwide added five strategists to the New York office: Tim Polder as director of content strategy; Chiara Martini as director of social strategy; Neil Simpson as associate planning director; Amanda Moreno as social strategist; and Claudia Steer as group strategy director. They all report to Stuart Hazlewood, chief strategy officer of DDB New York. Originally from the Netherlands, Polder joins DDB New York from London and Amsterdam where he served as a digital strategist at Saatchi & Saatchi, Cheil Worldwide and at his own consultancy firm Badabiem Badaboem. For the last five years, Martini was responsible for digital & …

TBWA Worldwide hired Anaka Kobzev as global head of communications. Beginning April 18, Kobzev will be based in New York global headquarters and will report to Troy Ruhanen, CEO of TBWA Worldwide. She joins TBWA from J. Walter Thompson, where she served as director of communications for North America, responsible for creating and implementing communications strategy and messaging, as well as spearheading media relations, executive visibility and partnerships for the agency's U.S. and Canadian outposts. Prior to JWT, Kobzev held a dual role with Interpublic Group as communications director for McCann Erickson and twofifteenmccann offices in San Francisco, Los Angeles …