To be fair, both Liverpool and Tottenham have also been fairly inconsistent so far this season. Spurs weren't great against us, and got battered with fuller strength sides than we've had by both City and Utd earlier on in the season. Beating a 9 man Liverpool 4-0 was their highlight this season, but it took them going down to 9 men for the goals to start pouring in.
We didn't have to be great. I'd say we were pretty average against you lot, and still won relatively comfortably IMO, with most of our chances not making it past Szczesny. You say we were battered against the Manchester sides, but against both clubs we played midfields without a holding player (suicidal) and didn't have King, Parker or Adebayor for either of them.
Arsenal are good enough to improve, and 7ish points isn't that much to make up over 30 odd games. Let's see how Tottenham cope when their best right-back, goalkeeper, centre-back, and centre-mid get injured. You say we didn't invest, yet while we bought 5 players at the end of the window, you bought Scott Parker and... Emmanuel Adebayor. The most inconsistent striker in the league IMHO; he always was at Arsenal too. He drifts in and out of games and seasons. Oh, and you kept an unhappy player. #Winning
Yes, because our squad was already stronger than yours. We have injuries to Gallas and Dawson, yet you don't see us having to play a CM in CB at the moment!
As for Modric being an unhappy player... he can be as unhappy as he likes, as long as he keeps running the show for us.