In this ground-breaking book, Richard Rumelt, the world's leading authority on strategy, shows how finding the crux of a challenge is the essence of the strategist's skill. The crux is the key issue where action will best pay off, and Rumelt reveals howto pinpoint it so you can focus energy on what really matters. Drawing on decades of professional and academic experience, and through vivid storytelling of some of the most important business decisions of recent times, Rumelt illuminates how leaders can overcome obstacles, navigate uncertainty and determine the best path forward.