TBH since they're under Seedorf they're playing better than Allegri's era. He's unexperienced, but at least he's an intelligent guy, it is known since his player times that he was a "coach on the pitch" and he's got some good ideas. He's being terribly unlucky (red card after 5 mins, the Arda Turan ridiculous goal, the match against us) but Milan at least is doing something on the pitch, and in the long run their results should be good, you have the impression they can be dangerous. And let's not remember that he came mid-season, and didn't have the time for anything. Allegri is an italian Moyes, he's never done really nothing to sit on a prestigious bench, if not being a buddy of an influential person (Galliani or Ferguson). In Cagliari he had a lot of time and good players, but never got any near to a UEFA qualification or a season over the standards. Milan NEVER played a nice football under Allegri, and even in the Ibra days the underachieved, by dropping a lot of points for his ineptitude (without Allegri on that bench for sure we wouldn't have THE scudetto, the sweetest win ever, 2011-12, with the team Milan had). Allegri is/was anti-football, the way Milan played was totally random and atrocious and all he could do was that donk smile on the bench. He's one of football mysteries, like how Motta and De Ceglie can play in Serie A.
Donadoni is doing literally WONDERS at Parma. Currently I can safely say they're the team who plays one of the best football out there. They're unbeaten since something like 18 matches, their last loss (not even deserved) was against us. If their results was these since August instead of November they'd be fighting for the Champions. Their build-up is so smooth and easy, a joy to watch, and it's really pleasing, it's like watching first Juve 2011-12. They arrive in front of the net with terrificant facility. If he has the character to repeat this in a big club it should be something to look for.