Tottenham host Chelsea on Thursday and boss Jose Mourinho has been talking about new Blues manager Thomas Tuchel.
Mourinho said: "Chelsea is Chelsea.
"They change the coach but they didn't change the players. The players are very good and there is great depth.
"They had a good coach in Frank [Lampard] that was doing good work. They have a good coach now in [Thomas] Tuchel despite coming from a league you cannot compare with the Premier League.
"But he is used to working with players of high calibre and leading dressing rooms with important players."