Jim Harrington, president of FCB Southern California, Irvine, Calif., will head up the account. He replaces Greg Sieck, executive vice president and worldwide account director, who left the San Francisco FCB office earlier this month.
Heidi Roberts, formerly with Omnicom Group's Goodby, Silverstein & Partners, San Francisco, joins FCB, San Francisco, as senior vice president and group account director on Taco Bell.
Bob Gayle continues at FCB Southern California on the regional business, and creative continues to be led by Tom O'Keefe in San Francisco, said Ian Beavis, CEO of FCB, San Francisco.
The Irvine and San Francisco offices share work on the account.
Taco Bell is part of Yum Brands, the new name for Tricon Global Restaurants, pending shareholder approval of its acquisition of Yorkshire Global Restaurants.