Chelsea striker Didier Drogba says the club's established players must adapt to the new system employed by manager Andre Villas-Boas.
The Blues have been criticised for playing an attacking style this season, which has seen their defensive problems mount.
But following successive wins over Newcastle United and Valencia, signs that the squad are finally learning to adapt to Villas-Boas' system are there for all to see.
"He [Villas-Boas] is trying to build something strong, like the other managers did before. He bought some new players and we have to adapt," Drogba said.
"I will say the old players, the ones who have been here for a while, we have to adapt together, learn how to play together and win together.
"There are still a few things we need to improve on.
"To win the Champions League you have to be a really strong team and be lucky as well. But we have to create and make our own luck.
"If we keep going like the way we did against Valencia, then why not? It is good to be part of this new campaign.
"The match against Valencia was only my second in the competition this year so it's good to be part of it. I love this competition."
Drogba's performance in the summit meeting at Stamford Bridge on Tuesday brought back memories of the destruction the Ivorian used to leave in his wake during Jose Mourinho's tenure in west London.
The 33-year-old will be looking to continue his good run of form against leaders Manchester City on Monday, with Spaniard Fernando Torres set to be a spectator once more.
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