When Best Buy announced that it hired Hubert Joly to turn around the struggling consumer electronics retailer in 2012, the stock tanked as investors questioned why the company would hire a Frenchman with no experience in big-box retailing. But Joly proved to be up to the turnaround task, winning over employees, customers and shareholders with a strategy that fended off competition from Amazon and pushed Best Buy into new areas like healthcare. Now, he’s teaching the next generation of corporate leaders how to put people at the center of their business, and radically rethink how we view work.