I think the similarities between Smart and Rondo are eerie. Both show tremendous ability coupled with glaring flaws. To me, both are clearly point guards. I see no reason to consider converting Smart to a SG or even a combo guard.
Based only on watching them play, it seems that it is more likely that Smart will develop shooting touch more quickly than Rondo did (or didn't, depending on how you view Rondo currently). But like Rondo, I think Smart has enough talent and vision to be a legitimate if not very good player in this league, even if he is never a "good" shooter.
That shot is ugly right now but I think it will develop. I am also surprised at how quickly Smart is developing. Smart is already develop noticeably from summer league to preseason and I expect that will continue. I still hope they keep him on the second unit and don't rush him.
I am all in on Marcus Smart.