Global Media Network Carat has announced the promotion of chief strategy officer Michael Epstein to the role of chief client officer US. In his new role Epstein who will continue to report to Doug Ray, US & global president, will oversee all of the US client teams across Carat’s offices in New York, Atlanta, Boston, Chicago, Detroit, Los Angeles and San Francisco. Prior to joining Carat, Epstein was president of strategic resource and client services at Mindshare, where he was responsible for overseeing all digital media services for North America, new business, multicultural and promotions, and key client relationships.