You say that as if Birmingham just happened to be in the final as if by accident. Anyway, you can talk about intangibles like motivation or bottle until your blue in the face, but if the squad is as good as you believe it to be, statistically we've been unlucky.
Personally, I think the players have just been a little bit shit. We saw just how big a difference dropping vermealen had to our shit defence, and all those moaning about how wenger can't do counter attacking footy or defend set pieces have suspiciously shut the fuck up over the last few months... Individual's matter more than the manager imo, and we just haven't had the quality, nor the luck to fluke cups like liverpool or spurs have in the last few years... (unless you want to tell me kenny or twitchy are better managers than AW?)