Thomas is one of the world’s leading experts on marketing leadership. He is a former partner of McKinsey—and the author of the new leadership book The 12 Powers of a Marketing Leader (with Patrick Barwise). Thomas studies the unique intersection of customer focus and change—including the world’s largest study, with over 68,000 assessments – on what makes for an impactful CMO. Thomas has consulted and marketed for over 20 years, in 14 industries, in 45 countries. His clients include many of the world’s most prominent companies, including over two dozen from the Fortune 500. For the CMO Fellowship Programme (a joint venture between McKinsey and the Marketing Academy to prepare CMOs for a CEO role), Thomas serves as its long-standing leadership dean. Thomas is a columnist for Marketing Week.