Dave Ulrich, cofounder of the RBL Group and coauthor of "The Leadership Code: Five Rules to Lead By."
Bob Sutton, professor of management science and engineering at Stanford University and author of the HBR article "How to Be a Good Boss in a Bad Economy."
Paul Osterman, professor at the MIT Sloan School of Management and author of "The Truth About Middle Managers."
Bill Drayton, founder and CEO of Ashoka.
Claudio Fernández-Aráoz, senior adviser at Egon Zehnder International and coauthor of the HBR article "The Definitive Guide to Recruiting in Good Times and Bad."
Ann Livermore, executive vice president of Hewlett-Packard's Technology Solutions Group.
Dick Beatty, professor of human resource management at Rutgers University and coauthor of "The Differentiated Workforce."
Rita McGrath, Columbia Business School professor and coauthor of "Discovery-Driven Growth."
Paul Levy, president and CEO of Beth Israel Deaconess Medical Center in Boston.
John Quelch, Harvard Business School professor and coauthor of the HBR article "How to Market in a Downturn."
Philip Lay and Todd Hewlin, managing directors at TCG Advisors and coauthors of the HBR article "In a Downturn, Provoke Your Customers."
Bronwyn Fryer, HBR senior editor and author of the case study "The Layoff."
Paul Krugman, Nobel Prize-winning economist and op-ed columnist for The New York Times.
Colonel Tom Kolditz, professor and head of the department of Behavioral Sciences and Leadership at the U.S. Military Academy at West Point.
Sydney Finkelstein, Tuck School of Business professor and author of "Why Smart Executives Fail: And What You Can Learn from Their Mistakes."
Barbara Kellerman, lecturer at the Harvard Kennedy School and author of "Followership: How Followers Are Creating Change and Changing Leaders."
David Rhodes, global leader of The Boston Consulting Group's Financial Institutions Practice.
Peter Ubel, physician and behavioral scientist at the University of Michigan and author of "Free Market Madness."
Marshall Goldsmith, executive coach and author of "Succession: Are You Ready?"
Annie McKee, founder of the Teleos Leadership Institute and coauthor of "Becoming a Resonant Leader."
Michael Watkins, cofounder of Genesis Advisers and author of the HBR article "Picking the Right Transition Strategy."
Diane Coutu, HBR senior editor and coauthor of the article "What Can Coaches Do for You?"
Featuring the ideas of Vineet Nayar, Jeff Stibel, and Stewart Friedman.
Clay Christensen, Harvard Business School professor and coauthor of the HBR article "Reinventing Your Business Model."
Jeffrey Cohn, consultant at Spencer Stuart and coauthor of the HBR article "Finding and Grooming Breakthrough Innovators."
Joseph Pine and James Gilmore, founders of Strategic Horizons LLP and authors of "Authenticity: What Consumers Really Want."
Featuring the ideas of Tom Davenport, Rosabeth Moss Kanter, John Baldoni, and Annie McKee.
Hal Sirkin, senior partner and managing director at The Boston Consulting Group and coauthor of "Globality."
Walter Kiechel, former managing editor at Fortune magazine.
Lew McCreary, HBR senior editor and author of the article "What Was Privacy?"
Holly Weeks, communication consultant and author of "Failure to Communicate: How Conversations Go Wrong and What You Can Do to Right Them."
Scott Cook, cofounder and chairman of the executive committee at Intuit.
Andrew Winston, founder of Winston Eco-Strategies and coauthor of "Green to Gold."
Adam Werbach, global CEO of Saatchi & Saatchi S and author of "Strategy for Sustainability: A Business Manifesto."
Diane Coutu, HBR senior editor and coauthor of the article "How to Protect Your Job in a Recession."
Ed Catmull, cofounder of Pixar and president of Pixar and Disney Animation Studios.
Rohit Deshpande, Harvard Business School professor.
John Kotter, Harvard Business School professor and author of "A Sense of Urgency."
Scott Kirsner, author of "Inventing the Movies: Hollywood's Epic Battle Between Innovation and the Status Quo, from Thomas Edison to Steve Jobs."
Jeff Stibel, president of Web.com.
Melissa Raffoni, president of Raffoni CEO Consulting.