Chelsea boss Andre Villas-Boas concedes his defensive players are still adjusting to his tactics.

However, he insists his players are enjoying his new system.

"I don't think any kind of answer I can give you would explain what has been happening," Villas-Boas said.

"We have set out to play in a different way.

"We have set out in every game to win. We don't speculate in games. We take the initiative in terms of ball possession. We create the most amount of opportunities. We are on the right track.

"It can take more or less time, but that's not an excuse for the results we've been having.

"The focus is on us to try and turn those results around. The more the focus is on us, the more we have to respond."

There have been reports some players are unhappy with the new approach but Villas-Boas said: "We think - me and the players - that it's the right way. They are enjoying what they're doing.

"You need results to gain this consistency and the confidence to play at this level and keep the philosophy.

"But the philosophy will be the last thing that will be changed. We are happy with the way we are playing."