Congratulations to Southampton. A remarkable feat.
I would explain the weakness at the back by the resting of the entire back 5.. Almunia, Clichy, Vermaelen, Gallas, Sagna. Just saying, like..
Indeed, yesterday's Arsenal line up was a relatively inexperienced one, and while in Campbell there was a very experienced player in defence it showed that he's been out of action for a while.
The thing is though, as I've mentioned previously criticism of Arsenal's defence isn't based on that one Cup tie. They've looked wobbly at the back for quite a while and you always get the feeling that they're going top concede at some point – a stark contrast to some of the Arsenal teams of old.
So far as transfers are concerned, there seems to be (in the minds of the media and some of the supporters at least) a search for the holy grail of football, the mythical prolific striker. I'd suggest that perhaps this isn't the area of the Arsenal team that needs strengthening the most. After all, they've scored more goals than any team in the division – and they've come from all over the park.
While having a Torresesque or Henry-like striker banging them in week in, week out may seem a desirable notion, if you're relying on one player to get the lion's share of your goals you're facing a problem if he's injured (as Liverpool find out with Torres a couple of times a season) or if the opposition manage to freeze him out of the game. Arsenal's attacking threat comes from a number of attacking players (both forwards and midfielders, plus the likes of Vermaelen chipping in too) and this is what's making them so dangerous at the moment. I think the big problems come in other positions, namely at the back.
Wenger needs to get his goalkeeping situation sorted for one thing – Almunia doesn't impress me as a first choice. I've thought for a while that Hugo Lloris from Lyon would be a good capture for Arsenal – he's young but highly rated, with experience of playing in the Champions League and is starting to lay a claim on the position in the French national side. As for the defence, I think Vermaelen was a good purchase but further strengthening of the defence must surely be considered a priority. Campbell can only be a stop gap measure.