If they play 3 at the back it will help. Sakho and agger can man the main threats while skrtel can just attack the ball as it comes in.
That's our biggest problem IMO no one attacks the ball were reactive to what the other team does so were always a step behind and our timing and reading of the ball seems off.
Also the marking decisions are crap or non existent. Constantly see mismatches with Johnson or flanno on the other teams centre halfs,