Early days but the numbers remind me of MU last season when before Jan their numbers at both ends were top4/5, but they were under performing until Fernandes provided the missing piece. IMO we have the building blocks but are disjoint and lacking dynamism in midfield & transition. Partey can provide the first part and a change of shape that comes with his signing can assist making that connection in transition.
I'm almost loathe to say it but he may need to play as DM/#6 in order to provide cover if we switch to an inverted midfield3, but with license to go forward on the ball if the opportunity presents, with one of the #8s tasked with dropping in to provide cover as he goes forward.
All things said IMO we have a better than expected opportunity to regain top4 this season that I do not expect will be the same for next season. If we are in top4/contention in Jan then the club needs to support Arteta in the market to see the job through. We cannot be left with out dicks in our hands if we do a LCFC from last season for the want of a mid-season signing to get us over the line in terms of providing either balance/capability/quality required.