The thing with Dufty is that he isn't trying to defend. There was one hilarious clip at the weekend where a Hull lead runner goes through, possibly Griffin, and Dufty just carries on running to get out of his way. He could have at least made a challenge and tried to dislodge the ball, but he had absolutely no interest in putting his body in the way of him. He was the same against us, there were a couple of times he could have got to the ball carrier and whilst he might not have successfully made the tackle, not even trying to is criminal.
Someone above put that Field puts his body on the line in defense. I'd hate to him half hearted then if that's his defending when fully committed.