Adam Grant is the management guru that management gurus turn to when they’re wrestling with a thorny problem.
The professor at the Wharton School of the University of Pennsylvania might be the world’s leading organisational psychologist. His client list includes some of the biggest names in global business: Microsoft chief Satya Nadella, Richard Branson, Bill and Melinda Gates, Disney chief Bob Iger, former PepsiCo boss Indra Nooyi, tech, sports and healthcare billionaire Mark Cuban and Michael Dell.