They look far better than the previous game, but still not their best outing today. They can do better but always struggle with proper finishing.
They lead the game with narrow score and i think it's not enough. They must have scored another goal in order to save their place.
Of course, at least they didn't struggle like they did against Fulham, who needed extra effort towards the end of the game. About 20 minutes left for the Chelsea - Everton match to finish, I agree that 1 goal difference shouldn't be enough for Chelsea, they have to score more goals to maintain their lead in the match, besides that they also have to give their fans pleasure (because they are playing at home). Anything can happen with this 1 goal difference, don't ever think that Everton might not score a goal

.