I'm not too bothered by that Leno flap. I feel if he stayed on his line, yes he would've given himself a chance, but it would be so small from point blank like that. I think Austin still scores, 19 times out of 20. I honestly felt he needed to try and touch that in the air to give himself the best chance of stopping it.
Still, as we saw, he couldn't quite reach it, so technically the correct goalkeeping decision would've been to stay on the line and make yourself big, so it does go down as an error, but it honestly doesn't bother me, I think they score regardless of Leno's decision.
We gave them far too much space to get those 3 crosses in, and Koscielny was probably most heavily at fault for the strikers getting clean headers on them. If we had our first choice defence all fit (or even Koscielny after a few games rather than his first league game since the injury), I think we have a good chance at preventing all 3 of those goals.