Thomas O. Davenport is a senior consultant with Towers Watson , a global human resources consulting firm, based in San Francisco. Tom concentrates chiefly on helping clients improve the people-focused elements of business strategy implementation. He's also the author of two books: "Manager Redefined: The Competitive Advantage in the Middle of Your Organization," and "Human Capital: What It Is and Why People Invest It." Contact him at tom.davenport@towerswatson.com.