I agree, Ian.
Sometimes I think it is a fitness issue. Maybe playing Saturday then Tuesday then Saturday again may take it out of him.
Then again, I think if he has a fitness issue then playing like that should improve his fitness anyway, shouldn't it?
I think it may be a confidence issue. The difference between going for a loose ball, with confidence, and getting it under control, and not going for a ball but allowing the opposition to have it because he isn't confident, may be the issue.
When he is confident to really go for a ball and come away with it is when he is at his best. He certainly get us up the pitch then, but when he doesn't do that and falls back to defending, then the ball gets passed around him and the team as a whole doesn't get up the field at all.
There is a big difference.