Well, he's not won anything that I can remember but he did get Chile playing nice footy. Seems very highly regarded, not seen any of his marseilles but I don't think his reputation was damaged there, we knew he was a nutcase who brought good results and played good football.
He would never come to Villa, especially not in the Championship, I can't see him working in England full stop. Was mooted for Lazio, but I think he'll end up having a crack at a bigger club, possibly in Italy or Spain. He's getting on a bit so I doubt he'd want to take on our rebuilding job!