It’s restructuring season at Chanel, which is still defining its post-Lagerfeld vision some five years after the Kaiser’s passing. C.E.O. Leena Nair’s effort to impose a consistent strategy across the company’s three divisions—fashion, fragrance and beauty, and watches and fine jewelry—is likely to result in a significant upheaval that will see the old guard offboarded in favor of a new generation of leadership. Finding the right new people, though, is never easy. And while everyone in the industry is focused on whomever the mega-luxury house appoints to replace Virginie Viard as creative director, the people chosen for a number of other open roles will also be critical harbingers of Nair’s vision.