BBDO has hired Publicis Seattle chief executive Mark Cadman to run the agency's AT&T "billion-dollar" account as an executive vice president and managing director of North America, Noreen O'Leary writes. Cadman has worked on T-Mobile and Vodafone, among other brands. "It's his chemistry with us and his experience and the energy he brings. Ultimately, the big thing for us is you have to really believe in creative, which Mark does," says Troy Ruhanen, BBDO's CEO of the Americas. For its part, Publicis has elevated Managing Director Scott Foreman to CEO of the Seattle office.