Pablo Isla, the CEO of Inditex, is No. 1 on Harvard Business Review’s list of “The Best-Performing CEOs in the World 2017.” He opens up about his management style and reflects on his tenure leading the Spanish clothing and accessories giant, whose brands include Zara, Massimo Dutti, and Pull&Bear. Successful fast fashion takes much more than speed, he says. Isla discusses aspects of the company’s business model: source close to headquarters, entrust store managers with product orders, and treat what’s sold in stores and online as one stock. He also forecasts the future of physical stores.