He's just a 100% confidence player. He did a couple of silly things (ayshford dropped the ball and watched it go over the sideline and Benji's pass which he gathered and then ran out with) and I think it just haunts him. He can't get it out of his head, so he tries harder, but he's not focused on the game anymore so it doesn't work out.
This is how I play my sport anyway, I can't get rid of things that I've screwed up on. The Souths game, if you watch the tape, his demise is very much caused by that 40/20 kick he tried to keep in field. And in the Canberra game, his awesome plays had to do with some crucial tackles he made.
I still want him in our football team though, because if he does do those good things he's great!