NEW YORK—David Herrick (pictured) has been appointed chief operating officer at MWW Group. In this new role, Herrick will work closely with MWW president and CEO Michael Kempner and the senior leadership team to enhance MWW culture, client service and growth. He will also continue to serve as general manager of MWW’s New York City office. Herrick has been with MWW since 2010, serving most recently as executive vice president, general manager in New York.

DALLAS—Burson-Marsteller has appointed Matt Burns as Southwest public affairs market leader. Burns joins BM from UnitedHealthcare Medicare & Retirement, where he was the director of corporate communications. Earlier in his career, he also served as director of communications for the 2008 Republican National Convention and press secretary for the US Department of Veteran Affairs during the Bush administration.

WASHINGTON, DC—Mike Tuffin, executive vice president of America's Health Insurance Plans, the national trade association representing the health insurance industry, is joining APCO Worldwide as managing director of the firm's headquarters office in Washington, DC. Prior to joining AHIP, Tuffin served as vice president at APCO, where he helped launch a pharmaceutical industry prescription assistance campaign. He also previously served as senior director of strategic communications at the Pharmaceutical Research and Manufacturers of America.

CALGARY—Hill+Knowlton Strategies has appointed Stephen Carter vice president, national director of campaign strategy at the firm, based in Calgary. Carter comes to H+K after helping to win several high-profile political battles, two of them for Alberta's current premier. He led Alison Redford's successful race for the Progressive Conservative Association leadership bid in Alberta, as well as her campaign for premier of the province. Most recently, he served as Redford's chief of staff. He was also the political strategist in Naheed Nenshi's successful 2010 campaign for mayor of Calgary.

NEW YORK—MSLGroup Americas has added Stephen Millikin as senior vice president, director of fashion and luxury, and as a senior strategist in Its Be Spoke specialty unit. Millikin began his career in the world of fashion and luxury goods over 20 years ago at I. Magnin in San Francisco. After moving to New York, he held positions at LaForce + Stevens and later with Formula PR, and has also served in the cultural sector, having held positions with San Francisco Opera, Brooklyn Academy of Music and The Richard B. Fisher Center for the Performing Arts at Bard College.

BOSTON—Rasky Baerlein Strategic Communications has added Edwin “Ted” Carr, former executive director of the Massachusetts Office of International Trade, as a senior advisor. Carr will assist American companies looking to export goods and services abroad, represent foreign governments in the United States, and offer a comprehensive suite of consulting services for companies who want to conduct business in the US. Prior to joining RBSC, Carr was a member of Massachusetts Governor Deval Patrick’s economic development team and executive director of the Massachusetts Office of International Trade and Investment.

SAN JUAN, PR—Burson-Marsteller has appointed Lynnette Teissonniere as market leader for its operation in Puerto Rico. Teissonniere will be based in San Juan and will report to Ramiro Prudencio, president and chief executive officer, Burson-Marsteller Latin America. Teissonniere comes to Burson-Marsteller Puerto Rico from Voice Public Relations, the public relations agency within Arteaga & Arteaga, a multidisciplinary advertising and marketing services firm based in San Juan. Her prior experience includes two periods at Comstat Rowland, a leading local agency.