They have a wealth of midfielders but not a lot of depth up front either. I think Arsenal are putting a ton of pressure on their midfield to bag goals for them. When Arsenal were on top they had could count on getting 15 goals a piece from Pires and Ljungberg but they also had Henry up front along side Bergkamp. Right now Van Persie is their only capable forward and I don't think he's scorer of great goals rather than a great goal scorer. A lot depends on Walcott this year, I think he'll play more centrally and if he grows up fast, Arsenal will be in good shape up front.
One thing that was interesting was seeing Bendtder reborn playing on the right side of midfield. That was rather interesting.