Maybe my expectations were somewhat low because I feel he's done Ok. I'm not even sure I expect much more than what I see now. He presses and tackles well, gets about providing an option for a pass, and when he gets the ball, he mostly passes forward with pace on the ball, and isn't wasteful in his passing, oh, he also makes late runs into the box which results in him getting a fair few chances (which he hasn't converted yet)
Perhaps the one thing I'll expect as he gets more confident is his carrying of the ball when the opportunity presents itself to cover ground, apart from that I expect more of the same, I just feel the more he plays, the more some of those forward passes he already makes will end up as assists.
I also expect he'll start to make better use of his scoring chances. We've already seen in Chelsea that he's a very viable goal threat