We know strategy in business is crucial, but how many of us fully understand what strategy is and how to implement it? Roger Martin was the Dean of the University of Toronto’s Rotman School of Management and an adviser to CEOs on strategy, design, and innovative thinking. Ranked as one of the world’s greatest global business thinkers, Roger speaks to us about his eighth business book, Playing To Win, which looks at how to turn strategy from being complicated, and only occasionally effective to a task that is simple, fun and effective.