I think 4-2-3-1 is the way to play if we wanna revert lampard position to deep lying playmaker as he cant screen the back four because he a bit slow to be honest. Torres upfront Juan mata behind him(we can see him playing central role better than wide), ramires on the right,and left hmm malouda for the time being will be a great combination. to partner with lampard I think mereiles will be okay.