Chelsea boss Frank Lampard was delighted with their 5-2 win at Wolves.
Tammy Abraham struck a first Premier League hat-trick for the victory.
"It's a tough place to come," said Lampard. "They haven't lost here for a long time. They get good results against the top six teams because they defend so well and are dangerous on the counter-attack.
"We changed the system. The players took that on board really well. I'm delighted to come here and score five goals because not many teams do that."
Lampard went with three at the back and also said: "For ourselves, with Wolves in account. They play three at the back and they play it very well. There are two points really. One is we've conceded more than we'd have liked to. We had Toni back fit and to have three centre-halves gives you a bit more security on face value.
"And also I want us to be adaptable in an attacking sense. What it allowed us to do today is get Mason and Willian in really nice positions, inside wingers, behind Tammy. They caused Wolves exactly the problems we wanted to cause them. It was good to see the work we had done on it come off."
