David A. Nadler is chairman of Mercer Delta Consulting. He is the author or editor of fourteen books, including Champions of Change, Discontinuous Change, Executive Teams, Competing by Design, and Organizational Architecture.

Beverly A. Behan is a partner in the corporate governance practice of Mercer Delta Consulting. She has worked with more than fifty boards in the United States and Canada.

Mark B. Nadler is a partner in and the executive editor of Mercer Delta Consulting, overseeing the firm's publications and consulting to senior executives on communication issues.