Jim Collins researched over 1,400 companies for decades to understand what separates good companies from great ones. He found that great companies are led by Level 5 leaders who channel their ego into the larger goal. They also get the right people in place before deciding on strategies. Additionally, great companies confront the brutal facts, yet retain faith they can prevail. They simplify around their three circles of passion. Finally, great companies see transformation as a result of steady pushing on a flywheel rather than one-time change events.