The only thing I will say is that Ange's teams have always been weak defensively. A bit like Wenger latter days, always good in attack but susceptible to any opponents.
He has an impressive CV. Won in Australia, won in Japan (similar to Wenger's career) and took a very average Australian team to win the Asian Cup ahead of the traditional powerhouses those days like Korea and Japan. But I thought the most impressive thing about him was that he took Australia right before the WC 2014, got no preparation time and got them to play attacking football immediately. Even though he lost all 3 matches there the performances were very impressive.
His work at Celtic is already well documented here, but basically he always can get his teams to play the style he wants almost immediately and don't need to bring any backroom staffs. He works with what he has and can always rebuild a team from scratch.
