Upon arriving at the club, Conte created a rule that the squad must stay together at the Chelsea Harbour hotel on nights before they have an evening game at Stamford Bridge the following day.
Willian even noted earlier this summer that there was "no chance" he would have stayed at the club if Antonio Conte was still manager.
Chelsea began the new Premier League season with a comfortable 3-0 win over Huddersfield on Saturday. I am lucky to get the opportunity to play for France and that alone is a huge motivation for me, whenever I go on the pitch.
Willian posted a photo of the team celebrating their Wembley success with trophy emjois obscuring Conte, who has since been replaced in West London by Maurizio Sarri.
The chain-smoking Italian has reportedly relaxed two rules that were put into place by Conte in recent years.
"To play for your nation on the world stage is worth more than money can ever buy, and I get to do that, so I am very fortunate. I will only leave if Chelsea wants me to". I think so. We have a lot of players with quality up front, like Eden Hazard and Pedro.
"That's why Sarri talked about "fun" football because he wants to build from the back". Players like that want to play football. "So that is what I am going to try to do again this season".
Willian believes the fresh tactical approach can help Sarri secure a win over fellow new Premier League boss Emery.