I think everybody needs to calm down about de Ligt. Everybody instantly assumed that de Ligt would replace Bonucci in the starting eleven, but as of now he needs to prove he can form a better partnership with Chiellini. Bonucci actually had an excellent game yesterday and will rightfully so start against Napoli as well. The amount we paid was necessary, but we are not a mid-tier level club where that automatically means he will be an instant starter. He is a record signing in for a position we already have an established duo. He will get his chances and I am sure he will do absolutely fine, but as of now, we can't criticize Sarri's decision to start with Bonucci - Chiellini as it clearly worked out.