Book excerpt: Based on extensive research and the authors' combined thirty years of experience, Discovery-Driven Growth provides a breakthrough system for managing strategic growth. You will learn how to identify and prioritize your company's full portfolio of opportunities - from new product lines to entirely new businesses. The authors then show how to best execute specific initiatives, test major project assumptions, and develop a culture that values disciplined experimentation and learning over meeting mindless and unrealistic goals. Tools for dealing with each challenge are backed by examples from companies, from small firms to global giants, that have successfully put these methods into practice.