The problem with Juve is we don´t have depth that fills the needs of the team. It´s just a random collection of players.
You take out Cuadrado you lose a playmaker, take out McKennie you lose pressing, take out Morata you lose someone to hold the ball up, take out Arthur you lose ball retention etc.
The squad planning is terrible and not built towards an identity or idea of playing. So when you lose starters to injuries you have to adapt another style to those filling in. I don´t see a structure behind Paratici´s signings, he´s just brought in players for the sake of it.