The thing is, this is exactly what he did against Swansea, he drove at their defence fixing their defenders and then playing telling balls up to our forwards. Since then he has done none of this. Against Liverpool and Man Utd he never had much chance, but against Chelsea he picked up the ball in space and refused to run or make a forward pass. He looked around and passed to the nearest player, mostly backwards /sideways.
That's what's frustrating, he's got the ability to be a box to box midfielder, but confidence issues make him go into his shell. I think he can be much better then he is, he needs to believe it.