You are 100% correct. I don't think Exum will ever be as good of a defender as Roberson. Mainly, I was just trying to point out that Roberson's defense warrants his poor offense. So many in this forum want to bash Exum because he's not finishing or running the offense all that well. In my opinion, we don't need that as much since Mitchell has emerged. We just need Exum to be as good of a defender as possible (not quite as good as Roberson) and almost average to average on offense (which is much better than Roberson).