I'm still sure with Costa and Ronaldo we will still can win the CL but our defence needs to stabilize.
With a stronger midfield even defence improve.
It's easier to look good in defence if have to defend 3times per game.
Not so much if you have to do it 12 times.
So Khedira doesn't do much to defend
Matuidi is more forward than in midfield to defend and ofc doesn't have much passing skills
Pjanic is a playmaker not a defensive midfielder
Bentancur is a mix of everything but doesn't shine on anything
Emre Can is a good DM but you know what's up.
Rabiot isn't a mad tackler even if he is big but soft
So to me the defence problem is strictly related to the midfield.
Also the fact that we bought De Ligt because he was playing in Bonucci's position, but thanks to Chiellini waving good bye to the season, we moved him and it's not easy for a young boy to change team and country and also move him from his favored position
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