The Celtics are in a position to pick the best player on the board, period...If you limit yourself to just needs, that's when you start reaching...I'd rather have a position of strength to deal from (KO, Sully & Randle), then dropping down in the draft to get a guy who "could" start in the league someday.
Something else that bothers me is the thought that Marcus Smart has hit his ceiling at the age of 20...By the way, he just turned 20 in March. Smart, if he takes himself seriously and works at it, can become a better shooter. Is he going to end up being McBuckets or Korver? No...But that doesn't mean you throw him on top of the scrap heap because he has some mechanical flaws that could be fixed. Remember when the vast majority of us thought Avery Bradley would never be a reliable shooter? Not saying he's Ray Allen, but he has no doubt improved, mostly because he was so [dang] young when he came into the league. Players grow, they mature.
Another thing, let's not act like the players brought up like Stauskas & McBuckets don't have their flaws...Does Doug have a position he can defend? Does Stauskas want to play defense and can he handle the ball enough to be reliable? Every player in this draft has some kind of weakness...You take players on the belief that they will IMPROVE on those weaknesses...
Smart is just as likely to improve on his shooting as Andrew Wiggins is likely to improve on his handle, etc...