What: Senior VP-CMO Where: CDW, Vernon Hills, Ill. Why: Campbell oversees tech company CDW's advertising, public relations, channel marketing, market research, microsites, creative services and marketing content. Over the past year, he has led the development of such innovative campaigns as “North Pole Inc.,” which debuted in December, and TV spots featuring basketball star Charles Barkley in CDW's “People Who Get IT” campaign, rolled out in March.