First of all some of you are going to kill me for not having a back 4, but guess what Chelsea can play with a back 3 it is not rocket science or super hard to play with a back 3. The midfield looks strong and creative and it can easily support defense and offense because they are box-to-box midfielders. In the offensive part I put Anelka and Drogba as strikers and Deco as support striker feeding them balls and setting up plays. And if I am the opponent I would be worried about Anelka, Drogba, and Deco in my box.
If Deco can play AMF he can play support striker. It is almost the same thing except that support striker is closer to the goal.