Oh, ok i see what you are asking now. Basically. ATM: Mikel is too slow, and seems very lethargic on the ball, and off the ball. He offers little in the build up play (which isn't a problem if he is next to someone like modric, but he isn't). Ramires, will run all day up and down, but pasisng has left something to be desired, lacks some physicality and isn't a DM, or DLP. Lampard is the greatest! But in all seriousness, he doesn't offer enough in defence, unless he has someone who can be more defensive orientated next to him. Imo, a Luiz/Lampard or Luiz/Ramires Pivot provides a blend of Defensive abilty and some roaming forwards. Luiz, imo, is able to sit in when needed, as after all he is a defender, but he can go on those marauding runs forward. He also is better passing from deep than mikel and ramires.