Revealing stuff from Wenger on Walcott:

"Theo has been struggling because we make him work very hard but he has become a more complete player today," said Wenger. "He is not a liability any more, defensively. He does his defensive job. At the start that makes you heavy-legged when you win the ball back, and he went through a period when he was working so hard defensively he did not have the resorurces to go forward, but now he has got used to it.
Shows Wenger is thinking what we are saying and it's understandable he won't come out and say as much at the time. It's just a relief to know he sees it though.

Which means he should get a right slapping for Denilson.