McCann Erickson/San Francisco has added four new group creative directors to service the Microsoft and Xbox accounts. The hires include the team of Scott Duchon and Geoff Edwards, formerly of TBWA/Chiat/Day/San Francisco, Gerald Lewis -- formerly of Ogilvy & Mather/N.Y. -- and Chris Toland, formerly of Fallon's L.A. outpost. Mike Harris, formerly of TBWA/Chiat/Day, also comes on board as strategy director for Xbox. The hires come as McCann expands TAG, its youth marketing practice, to the San Francisco office, where it will be headed up by office GM Courtney Buechert. ... Josette Lata, formerly creative services director at BBH/N.Y., has joined JWT/N.Y. as head of art buying. ... Editor Gustavo Bernal, formerly of Nexus Films, has joined New York post house Cutting Vision. ... Freelancer Eileen Doherty, formerly of MTV, has joined bicoastal animation house Stardust as West Coast executive producer.