Herbalife added Eric D. Rosen to its growing global corporate affairs team as vice president of government relations and director of its Washington, D.C. office.   Rosen will oversee Herbalife’s D.C. operations and will report to Ric Hobby, who was recently appointed as head of Herbalife’s global government relations reporting to Alan Hoffman, executive vice president of the global corporate affairs team.   Rosen, who will be based out of Herbalife’s D.C. office, is a Capitol Hill veteran with e...