Christophe Eschenbach was already leaving the Philadelphia Orchestra. But this week also comes word he’s leaving the Orchestre de Paris as well. “For the first time in decades, Eschenbach will be without a formal orchestral appointment. “Orchestras, conductors and management are not working together anymore. The management in both cases [Paris and Philadelphia], I’m sorry to say, is amateurish. I’ve struggled with this quite a long time in Paris. I don’t want to do that anymore . . . I’m a free man.”