General Motors Corp.
Title: VP-general manager, marketing & advertising
U.S. budget: $1.7 billion
Agencies: N. W. Ayer & Partners, Campbell-Ewald, D'Arcy Masius Benton & Bowles, Leo Burnett USA, GM EventWorks, GM CyberWorks, GM MediaWorks, Harris Marketing Group, McCann-Erickson Worldwide, Mullen Advertising, Hal Riney & Partners
Power play: Mr. Guarascio is spearheading GM's move into nontraditional marketing of vehicles including event and relationship marketing.