David Heenan has maintained a double life throughout his career, juggling business and academia. A trustee for the Estate of James Campbell, one of the nation's largest landowners, he is a former senior executive with Citicorp and Jardine Matheson. He also served on the facilities of the Wharton School, the Columbia Graduate School of Business, and the University of Hawaii.David's articles have appeared in such leading publications as the Harvard Business Review, the New York Times, the Wall Street Journal, and the Christian Science Monitor, and he is the author or co-author of five books, including Co-Leaders: The Power of Great Partnerships and Double Lives.