I understand this idea seems pretty common. But in my eyes it's not just about being a "system" player. We should all understand it is ideal to be within your perfect position, surrounded by complimentary partners and the ideal style of football. We'd like to see that for most of the players as it would mean we have something more cohesive. But that's not where we are, we're a struggling team and the valuable players are the ones that perform.
But I think you also have to show yourself. Show why you're at Man Utd. If you're supposedly a great technician, a crisp short passer - well at least get on the ball more, try to effect the game. It's all been a bit limp so far, in his limited showings. A lot of turning back, nearly avoiding possession etc. Obviously there is an asterisk against that in that the sample size is surprisingly small but I'm not shedding any tears for him from what I've seen.