Water Cooler Group, a brand media communications company, launched this week, with Antony Young, former CEO of Mindshare North America, on board as president. Prior to working at Mindshare, Young served as CEO of Optimedia US. Water Cooler Group works with brands such as the Connecticut Office of Tourism, Entertainment One, Food Network, FX, Major League Soccer, Open Road Films and WE tv. Joining Young at the agency are Benson Hausman as executive director of marketing & development and Chas Howell as managing director of strategy & ideation.

Dallas-based agency, Firehouse has promoted Greg Hunter to group creative director/principal. Hunter has spent more than three years at Firehouse, most recently as an associate creative director and copywriter. Hunter will continue to report to Tripp Westbrook executive creative director and partner. In his new role, Hunter will lead creative strategy and execution for clients including Service King, Taco Cabana and the National Cheerleader’s Association. Prior to Firehouse, Hunter spent three years as a copywriter at Mother New York, developing content for Sour Patch Kids, SPIKE TV, Full Throttle, Dell and K-Y brands.

Leo Burnett elevated Steve Chavez to chief creative officer of Leo Burnett Detroit. Previously, Chavez served as global executive creative director, managing creative across the Detroit client portfolio. Chavez joined Leo Burnett Detroit in 2010 as executive creative director overseeing the Buick account. In 2012, Chavez was named global executive creative director, in charge of the agency’s entire GM portfolio including Buick, GMC, AC Delco and GM Certified Service. Under Chavez’s leadership, Leo Burnett Detroit won five new accounts including the NCAA, Chevy Silverado, GMC and Buick in Canada, and the GM Certified Pre-Owned and Fleet and Commercial business.

Brooklyn-based digital creative agency Big Spaceship hired Rob Thorsen as executive vice president of client services, reporting to Michael Lebowitz, CEO. Thorsen will oversee the development of Big Spaceship’s client relationships. Most recently, he handles digital and social media accounts at Publicis Network’s newly formed MRY. Prior to that he served as executive vice president, senior director at BBDO where he oversaw accounts like Starbucks and The Economist.

Saatchi & Saatchi New York promoted Justin Ebert to executive creative director, up from creative director. Ebert joined Saatchi & Saatchi as a creative director in 2010, working with brands like MGD64, Keystone Light, Capri Sun, Kool Aid, Duracell and Charter Cable. Prior to that, Erbert spent three years with Crispin Porter + Bogusky in Boulder, where he worked on Hulu, Microsoft, Best Buy, Volkswagen and American Express.

Christine Mattheis was named senior editor of Health.com. Mattheis was previously an editor at Fitbie.com, an editorial collaboration between MSN and Rodale.

Watch Entertainment, the parent company for all brand operations of Rachael Ray, announced that Sharon Feder was named chief digital officer. Most recently, Feder served as chief operating officer at Mashable.

Nick Haramis joined T Magazine as senior features editor.

Modus Operandi added executive producer Carolyn Davine to company roster.

Audience Entertainment promoted Adam Cassels from vice president, events to chief marketing officer.