I agree that it's been hard to watch Walker this season. He's just looked uninterested to me. Rookie season he was really entertaining, though, and I have hopes he can return to that player, but something needs to change.
My brother, who I do think has a pretty keen eye for basketball talent really, mentioned at some point in his second season that Walker had star potential. I don't think he'd seen alot of him that season, but he did see quite a lot of the rookie season, so I knew where he was coming from. His best games have been magnificent, but someone needs to get through to him.