While I think there's a chance this could be the case, I still think we'd be best served to see what a good coach could do with these two guys before we go making major changes. Personally, I think we need MORE ball-handlers. The fact that CJ and Dame are both "better" with the ball in their hands should NOT be a problem. As we saw in the POs last year, having two ball-handlers is not nearly enough.
I am somewhat concerned about their size/defense - but even that wasn't much of an issue last season. Get a better PF or SF and those defensive issues become even smaller. And hopefully that PF/SF can dribble the ball better than our currents.
To reiterate - CJ is not the problem. Stotts and Aminu are the main guys holding us back.