We have on the whole defended very well. Arsenal were just too good at unpicking our high line on the counter though, I mean for a team that was so thoroughly dominated in terms of possession, territory and shots they created some great chances and the best ones in the match. It actually reminded me of our 2-1 win over them at the Lane last year.
Apart from that we have used the high line excellently, and Cardiff again today were caught offside repeatedly.
I think its quite natural when you dominate possession/ the game so much that the opposition's chances will come chiefly on the counter and will look/be more dangerous. However, our recovery defending has been pretty good thanks to Walker and Rose especially. Now we have Eriksen we should see us creating and scoring a bit more freely and then we'll be able to retreat a bit and defend a 2- or 3-goal lead more compactly.
It will be very interesting to see how Chelsea set up next week. They clearly have the quality to get at us, and I suspect they will come out flying in search of the lead before dropping back a bit irrespective of the score. That opening period may prove the acid test for our defence this season, we can't afford to lose a goal early to a Mourinho team, and certainly can't afford the c*ck-ups on show today...