Mistress hired Iyana Sarrafieh as director of social media, a new position. She reports to agency founding creative partner Damien Eley and is charged with leading the agency's social media practice. Sarrafieh began her career in New York as a social strategy, brand channel manager at Translation. Most recently, she served as associate director, social media at Deep Focus and a strategic planner and social media strategist at Zambezi, both in Los Angeles. She has worked on brands including Neutrogena, Samsung, Intel, Adidas/TaylorMade Golf, The Honest Company, Coca-Cola/fruitwater, State Farm and Bud Light Platinum. "As social become more and more …

Lachlan Badenoch joined Carmichael Lynch as chief strategy officer. He joins the agency from Minneapolis-based Zeus Jones, where he worked on Nestle, GMI and Purina. Before that, he was based in Paris directing global strategy for Publicis Groupe clients like Nestlé and Orange. Prior to that, he spent time at Fallon Minneapolis as planning director on the BMW, Brawny and Purina accounts. Badenoch began his strategy career at Leo Burnett London, where he worked on digital and branded entertainment projects for Heinz, Nintendo, McDonalds and Virgin. "Lachlan has a proven, global track record of doing groundbreaking work and inspiring teams on …

Y&R named David Patton as global president, charged with operational leadership across the regions. Patton will join the agency in January 2017, based in London. Patton joins the agency from Grey Group, where he served as president and CEO of Grey EMEA and CEO of Grey UK prior to that. "I know that his enormous intellect and instincts make him a valued partner to clients and an inspiration to all who work with him," said David Sable, global CEO of Y&R. "He knows how to bring the best out of people and his innovative mindset always anticipates what we need …

Pittsburgh-based marketing communications shop Gatesman+Dave, has promoted Shannon Baker to the role of president. In her new role, Baker is tasked with driving agency integration, collaboration and innovation for the agency’s diverse client roster which includes Del Monte, Hormel Foods, Foodland, UPMC Health System, and the Pittsburgh Penguins hockey franchise among others.  Baker joined the agency in 2007 and is credited with reeling in several million in new business income  and with landing major accounts such as Thorntons convenience stores, StarKist and Tobi Dynavox. Previously she was EVP and head of the agency's PR and social media units.

M&C Saatchi LA promoted Maria Smith to executive creative director. Smith has been a creative director, associate creative director and copywriter for 12 years, nearly ten of them with M&C Saatchi LA. Smith began her creative career as a copywriter at TBWA\Tequila, with a focus on digital advertising. She then moved to TBWA\Chiat\Day, where she worked on Nissan, Infiniti, Sony and Energizer. While at M&C Saatchi, she has contributed to award-winning campaigns for the San Diego Zoo and Epson. "It's an incredibly exciting time to be stepping into this role," notes Smith. "We're living through a really interesting moment right …

Beeswax hired Aaron Mittman as senior vice president of global revenue.

Viacom Labs, hired Kiel Berry as co-head and senior vice president. Berry, most recently head of Linkin Park’s Machine Shop Ventures, will co-lead Viacom Labs with Susan Claxton who was recently promoted to senior vice president.

Experticity named Kevin Knight as chief marketing officer.

Derby signed commercial director and filmmaker John Poliquin to its directorial roster.

GMR promoted Chad Diedrick to senior producer, and hired Alex Schwartz as content producer and Amy Freeze as director of media relations.