The Louvre Museum’s director resigned on Tuesday, ending months of questions in France’s cultural world over why no top official had stepped down after the October crown jewels theft. Laurence des Cars’ departure closed a bruising chapter for the world’s biggest museum. It came as the Louvre faces a widening narrative of an institution spiralling out of control. In the last year alone, the museum has endured the high-profile jewel theft from the Apollo Gallery, water leaks that damaged priceless...