I totally BELIEVE in this formation and the facts that we need an extra CB and a RB plus we have got to use a quality like Ramires.Therefore, our best bet is to have the formation this way...:
------------------- Cech -----------------
Ramires ---- Cahill /Ivan --- Terry --- Cole
-------------Luiz------Lampard-----------
Sturridge/Mata-----Oscar----Marin/Hazard
-------------------Torres------------------
Firstly, David Luiz has a potential of becoming a Defensive Midfielder and could turn to be one of the best in the world if guided in the right way just from the quality he has. He can defend like one, he can pass and point pass, he can obviously dribble and attack. His weaknesses, he likes to go forward too often and too aggressive on the tickle too often which makes us worry if he commits a foul while he is the last defender. More often of incidents like these could turn up to be either a penalty or a sent off. However, his weaknesses could dramatically become his strengths if he is pushed to a more forward position where he doesn't need to make awkward challenges plus use his simple defensive qualities accurately with less pressure. This way he can definitely, show us the quality he has and boast the teams defence and attack equally.
Secondly, Ramires is fast, can attack and also can be a good defender, can certainly cross, and he has got great stamina. His weaknesses, he hasnt got great pass accuracy or vision and he isn't good with areal challenges. what position does that take him too. Definitely a full back with great qualities. Beside all that, he hasn't got enough room for other positions as a regular starter plus would save us from buying a right back.
So tell me guys what you think? I'd really like feedbacks on this one.
P.S. excuse my writing quality as this is probably my first post.