MARK VAN OSNABRUGGE is a consultant at Marakon Associates, a top-tier international consulting firm based in Stamford, Connecticut. A former fellow of the Harvard Business School, he is also the widely published author of articles about entrepreneurial finance. He lives in Chicago, Illinois. ROBERT J. ROBINSON is associate professor of negotiations at the Harvard Business School and an angel investor with experience in a variety of startup companies. He lives in Boston, Massachusetts.