Have to say I agree with murf regarding keeping with your Chelsea defence.
You've somehow resisted the urge to switch them out while they failed to get more than 1 clean sheet in 10

. The damage has already been done to your team points - but you kept patience with them during the bad times - when they can get back on a run of clean sheets, you will make ground on the general masses who gave up on Chelsea defence.
Also agree with swiss' opinions:
Malouda is rarely in the starting XI so I'd switch to Mata.
In team 2 Downing, Torres and Campbell should be considered to transfer out.
Downing has been unlucky not to get a goal or assist - he's struck the post about 3-4 times this season so its been very frustrating for those who have kept the faith with him but at least he is knocking on the door trying to score.
Torres has scored twice but was sent off with a 3 match ban - why did you not notice his red card and transfer him out earlier?. You've kept him during the ban so I suppose you may as well keep the faith now.
DJ Campbell you should get rid of. He plays for QPR who are struggling to create any chances - oh and he broke his foot 2 weeks ago and is out for another 6 weeks!!