I think our main issue right now is the injury situation and whatever else that has prevented our best players from playing.
A difficult start is to be expected when you make so many changes. But we need the probable starters to play together so they can gel as soon as possible. How are they supposed to have gelled by now if Khedira is yet to play a game, Quadrado is yet to start a game and key players Marchiso and Pogba are yet to be on the pitch at the same time? We've used a different lineup in every game.
Allegri is perhaps a slow learner, but he will eventually find the best lineup. But will injuries allow him to field the same lineup a few games in a row?
It was probably not just luck, but Conte hugely benefited from the lack of injuries in his first season. It was the same players in the defense and midfield in nearly every game.
I'm quite certain that once Allegri has found the strongest eleven it won't feature players like Hernanes, Sturaro, Pereyra, Caceres, Padoin and perhaps not even Morata.