What should Kon Knueppel add to his game after a historic rookie season?

Kon Knueppel already proved he can be one of the NBA's best shooters. What would you most like to see him add next: playmaking, finishing, ball-handling or defense? He talked about being a better off-the-dribble 3-point shooter and also expecting to have to shoulder more of the creation burden. Are we going to see a strong second-year leap? Or a possible sophomore slump?