Cynthia Montgomery is the author of The Strategist: Be the Leader Your Business Needs (HarperBusiness). She is also the Timken Professor of Business Administration and immediate past head of the Strategy Unit at Harvard Business School, where she’s taught for 20 years. For the past six years, she has led the strategy track in the school’s Owner, President, Manager Program, attended by leaders of mid-sized companies from around the globe. You can read more here at the author’s website.