Right on the heels of fashion month, the designer shakeups have already begun. After this morning’s news that Donatella Versace would be replaced by Dario Vitale as chief creative officer of Versace, another major Italian brand has found a successor.

The mononymic Georgian designer has been at Balenciaga for the past 10 years, transforming it into a brand that’s as much of a destination for streetwear as it is for haute couture. Is Demna the right person to steer Kering’s largest brand ...