If he doesn’t win the Champions League this season, there’s a very strong possibility he gets the sack. PSG exist to win that trophy, that’s their number one focus. The league isn’t a write off but they are heavy heavy favourites, the cups wouldn’t have him keep his job. Yeah, managing Messi from the outside looking in seems great. But when you have him acting like a diva, and having more power at the club then how fun can it be really? I would hate to work with Messi & Neymar, they come across like absolute pricks.
He won’t be remembered at PSG unless he wins that first Champions League, and like we have seen time and time again, the PSG players cannot handle the big occasions. He would be insane to turn down a 4 year deal at Utd. Look at their squad, full of brilliant players who can do a whole lot better under a good manager.