I would imagine that Chelsea see little cause to change the way that they approached the games against Barcelona or Bayern. They were obviously confident of exploiting the weaker defenses of their opponents. Until the likes of Barcelona or Bayern learn to defend better then the likes of Chelsea, who are defensively strong, and don't need many chances to score themselves, will probably continue to pick them off.
I hate it when you get managers saying oh well they just sat back, Chelsea absorbed so much pressure against Barca/Bayern and scored goals with few chances show that these other teams need to learn how to defend better. I think if Chelsea had a full strength team they may of been a little more forward but Chelsea have never been an attacking side...
Bayern also won the title in the same manner in 2001