What's gone wrong so quickly at Crystal Palace?

As Pierre Sage waited to receive the Coupe de France trophy as the victorious manager of RC Lens last May, he turned to his staff and said: "Do you realise where we are?"

Sage had just led the club to a first French Cup title in its history while plotting a course to finish second in Ligue 1, its joint-best league position in over two decades - all in his first season in charge.