http://www.youtube.com/watch?v=Oo95XsUHm50an excellent scouting video of Olynyk. Better than draftexpress version. The commentator says three things alot about olynyk. Lack of "explosiveness" and also "sees the floor well" "anticipates well".
From some clips of the video he definitely looks like he sees the floor well (i guess being a fomer pg and playing qb for his school also helps) and definitely anticipates well. For those terribly worried about his defense, well watch the video. His basic defense is superb. Looks like a solid team defender and never stops moving. On offense, he has alot of moves and knows the angles ala Al Jefferson. But in the nba i can't see him being effective in the post area. Unless he goes up against guys like Carl Landry, Faried, guys who are shorter in height he can take adv on. Still he will be able to pull his man out on top of the key, drive in for a layup, or drive stop and shoot or pass it. He looks like a superb passer. Sully is also a great passing big guy. It will be interesting to see what happens whey they play at the same time.
I think in time as he gains experience he is going to play the same role Nowitzki has played for the mavs. They are not exactly the same players. But what they do have in similiarities are both are co ordinated/7 ft in height, able to play on the perimeter and torch bigger and/or athletic pf's. In addition pull them out underneath the net and make it easier for others to drive in. Nowitzki though really a SF has always played as a PF in the NBA. When dallas won it all a few years back, it was Chandler doing more of the dirty work downlow while Nowitzki was playing the pf spot dizzying his opponents. So teams would try to cheat and put a real sf against Dirk, and he would then religiously post them up and score easily around the basket. This is the type of unique adv olynyk could have in time
The lack of explosiveness is not really a worry. At least he has the basics down. Unlike Melo he has explosiveness but is ways away from the "basics". I think of the explosiveness as a luxury, good to have but not mandatory. Unless an opponent can score over him and also shoot the three, i'm not too worried, bc there are only a few pf/c that can do these things in the league.