Mustafi and Wilshere I agree with, can't make my mind up on Xhaka, I think he is a useful squad player. Bellerin just needs discipline to make him aware of the danger of turnover of possession.Chelsea have great players but just not enough of them. Conte's an excellent manager as he showed in his first season but the addition of European football this season meant they couldn't cope on all fronts. Look beyond their first XI and they really aren't strong.
Arsenal just have too many poor players, even in their XI. Cech (due to age catching up on him), Bellerin, Mustafi, Xhaka and Wilshere aren't good enough to play in any of the other top 6 side's XI yet are mainstays for them.

