He has to shoot a lot less and concentrate on doing the things offensively that will make him better. He has to pass more and seek out the open man more. He has to commit to being a great rebounder. He has to drive the lane more and create offense that way.
My main concern with Smart shooting less and playing a more distribution-focused role on offense is that he could turn into a Rubio / Rondo sort of player ... that is, a guy the defense happily plays off, knowing he's going to defer instead of taking a shot.
Certainly I'd like to see Smart be more judicious with his shots, especially jumpers.
However, I think it's important for the team offense and for Smart as an individual player that he continue to have a willingness to take good shots that are open, even if he never shoots a particularly high percentage on them. At the very least, we've seen that Smart has a penchant for hot streaks. That can make a defense think twice about leaving him completely open.
I'd always prefer to have a 30% 3P shooter who happily takes any open shot he gets as opposed to a guy who hesitates and defers so that the defense can more or less ignore him.
He needs to get inside more, get to the line more, and finish at the rim better, however. In college he was a solid finisher at the rim and drove a fair amount. In the pros, that part of his game has been diminished significantly. I worry, though, that he just doesn't have the first step to get inside enough as the ball-handler.