IF Walker is that good why was he De-Listed and No Team had any Interest during the Trade Period?
Because he's slow (in the legs and in the decision making process) If the ball comes into his immediate zone he can compete, if not then he's limited. Comparing him to Moore is just ridiculous.
If you're content to play a draft horse at CHB he's your man. Fair dinkum, I'd rather use Reid there and he's been a dead duck defender for years now due to his lack of agility.