[‘07 rank - #6]
Being the leader of a stalwart agency like Weber Shandwick is noteworthy in and of itself, but Harris Diamond's CEO role at IPG's CMG division truly cements his place on this list. Diamond's post at IPG gives him oversight of other marketing services. By virtue of his ascendancy at the holding company, Diamond has enormous influence in the way IPG and, as a result, the wider industry, considers PR. While the holding company's other disciplines fluctuate in their performance, PR is highlighted in most, if not all, of IPG's earnings calls as a strong component and business driver. This year, Diamond led his agency's participation in a Harvard Business School 2008 case study focused on WS' Client Relationship Leader program. He is also a former Council of PR Firms chairman. Diamond's role on the board of directors at Business for Diplomatic Action, a nonprofit focused on how businesses can work together to enhance the US' image abroad, is of particular relevance today.