#1 The bench strength
Today's match was not only about the number of goals scored by Arsenal. It was also about them playing without many regular starters in an important away match and still getting the 3 points with ease.
Ramsey, Ozil, and Aubameyang didn't start for various reasons, but Welbeck, Iwobi and Mkhitaryan proved that they are the same team without many starters. In defence, Rob Holding played brilliantly and filled in for Sokratis who played the full 90 minutes on Thursday in Azerbaijan.
Competition for places is a good thing and given that Unai Emery takes the Europa league seriously, the bench strength will be useful in the hectic fixtures coming up in a few weeks time.
Edited by Emeka Monyei