Seems he was brought in to allow Pellegrino to indulge himself in a bit of 'fantasy football' management, it is recognised he's crap at it in the real world.
Only thing that strikes me is whether this is t giving him sufficient rope, which allows the club to say "we've backed you, allowed you to bring your own man in, it hasn't worked - now f^ck off.. "*
* Wishful thinking perhaps.