Dorn is not a great defender either technically or physically but he does show more energy and interest than most of the others. Like others have said, I actually think he's made an effort to be braver in contact.
Michael Witt was the worst on show yesterday. Kicked dead from a kick-off, failed to find touch with a penalty - 2 oppo tries. What's the response? Head down, hands on hips, feeling sorry for himself.