If a company starts to veer off track, whether amid technological change, marketplace conditions, or otherwise, it is daunting to get back on a path to growth. But big turnarounds are possible, provided you have the right team and mindset. When he was president and CEO of Marvel, Peter Cuneo oversaw the resurgence and sale of the media company, but even before that he had a long track record for turning around many types of consumer-facing businesses at brands from Clairol to Black & Decker. He shares the strategies that work best for shaking up organizations and teams and boosting their performance.