Firstly I am not a 'fanboy' of anyone. Now to address your idiotic comments.
A midfield of Pjanic, Matuidi, Khedira, Marchisio and Beantancur is beyond $#@! for an elite European club. There is not ONE world class player there. The midfield is made up of an inconsistently great player (Pjanic), an effective but ultimately average player (Matuidi), a player WELL past his prime (Khedira), a chronically injured player who hasn't returned close to his previous form (Marchisio) and a completely unproven player who is having his first season at the top level (Bentacur). That IS a bad midfield compared to the likes Real, Barcelona, Bayern, Man City, PSG etc. Hell even Tottenham who aren't considered a top European team COMPLETELY bossed us in midfield over TWO games. So yes are midfield is bad by the high standards we want set for ourselves. It is not bad for Serie A but then Serie A is hardly full of top flight teams.
Onto the defense part. We have one of the best defenses in the world largely due to the brilliance of Chiellini and I would argue Allegri's tactics. Our defense is by no means 'the best in the world' going on the actual players. Only Chiellini is world class. Benetia isn't there yet, Sandro is horribly off form, MDS isn't world class, Barzagli is past his prime but effective.
Wojciech is one of the best goalkeepers in the world

Look I don't even need to address that stupidity. He is in great form but he is not one of the best goalkeepers in the world.
We have great depth in attack but considering the attack of Liverpool, Real, Barcelona, Man City, Chelsea, Man United, PSG, Bayern etc. and.... again...even Tottenham.... it is hardly stand out amazing. That's not even mentioning that Cuadrado, Bernadeschi and Mandu have been or are currently injured for various parts of the season.
Allegri dominates the Serie A and has brought us to a CL final with this team. 4th best squad in Europe? Do tell me who from Real, Barcelona, Bayern, Man City, PSG do we have a better squad than? That's 5 teams who have better squads.
Allegri has done extraordinary with the resources he has. You have an agenda not me. I am not $#@!ting on the players by stating the obvious. You however are acting like an illogical fanboy by saying such comments as Woj being one of the BEST GOALKEEPERS IN THE WORLD