There's been talk of Lampard blocking a new contract offer being made to Willian.
But the manager says he's yet to speak with his former teammate. He told chelseafc.com: "It does feel different, but in the short period I have been in charge it changes very quickly. You become accustomed to it and that's important for me to do that, and it's important for the players to feel that is the case. I didn't want too many grey areas. I know some of the players and the relationship with them is so good it's been no issue. I'm talking about Azpi, David Luiz, Willian's not here yet.
"I already sensed the size of the club and differences off the pitch, dealing with players with 70 caps and so many titles. No player is the same, but the basics are the same. And I haven't changed too much in my basic approach.
"On the pitch I will ask for one thing and that's absolutely buying into how I want to do it."