I see where you are coming from with a lot of this post but saying Sully is way more skilled than Olynyk is not accurate. It'd be the other way around if anything. I think it's rather close, Sully is skilled, but Olynyk is so special because he can pass, shoot, and handle the ball with more skill than just about any 7 foot player you will see. His issues are defense (which I think he pretty much has answered this year at least as far as a weakness) and then his mentality which still needs work to live up to his high skill level.
So basically I think the Bass/Big Baby thing was way off.
Sorry, that was my bad - I don't think I demonstrated my point very clearly there.
My overall argument was that the two guys (IMHO) are quite close to each other in terms of pure skill and talent level, but that I feel the difference in mentality between the two is the key factor that I feel will determine which one becomes the better long-term player.
My Bass/Big Baby comparison wasn't trying to suggest that on of the guys is much more talented than the other. It was more trying to demonstrate how much of an impact things like effort, motivation and work ethic can make to a players progress. In this case Bass was far less talented than Big Baby, but ended up having a significantly better career based purely on the fact that he was more modest, harder working, and had a "pro's pro" attitude.
My point from there is that with Sully and Kelly being so close talent wise, Kelly's superior work ethic and team-first attitude (versus Sully's perceived arrogance and laziness) could be THE factor that determines which of those guys becomes more successful in the NBA.
I didn't express that too clearly, so apologies.
good lord, can people just let this fascination with body shaming go? only here could you see the same people complaining over and over about his conditioning and yet at this moment in the Denver game he's posted 16 points on 7/12 shooting and 11 rebounds in just 23 minutes. I swear if he walked on water the same people here would be saying he needs to lose weight so he'd float over the water 
Yet in the previous game he had 9 points and 11 rebounds on 4-13 shooting in 28 minutes.
That right there is THE problem with Sully - the complete and utter lack of consistency.
Not sure if you watched the Jazz game, but Sully was a major reason why we lost that game. He took a LOT of really bad shots (most of which he, naturally, bricked) and went through stretches where he played some truly horrendous defense.
The thing he does that I hate the most, is that he forces WAY too many of those fall-away jumpers in the post, and he often does it early in the shot clock.
He's starting to become like Brandon Bass early in his career, in that once the ball gets in to Sully anywhere near the paint it's like a black hole - he absolutely refuses to pass it. Just about every single time he gets the ball down there he INSISTS on trying to back down his man and then trying to force either:
1) An awkward falling-back hook shot or
2) An awkward hotly contested fall-away jumper
In either case he almost always misses, and he does it regardless of who he's matched up against.
Watching him against the Jazz, trying to force that hook shot against RUDY FREAKING GOBERT (the very guy who was destoying us ALL GAME with his dominant rim protection) was quite truthfully one of the most embarrassingly stupid plays I've seen from any Celtics player this year. Seriously, what did he THINK was going to be the outcome of that?!?!?!?
Yet he does stuff like that all the time.
Sully needs to learn that he is NOT a go-to guy on offense, and he needs to stop playing like he's one. There are going to be games where he's got a matchup advantage that he can make use of, and he'll be able to get some occasional big scoring nights that way - but he needs to do a much better job of reading the opponent and decided when he can/can't get away with that.
As it stands right now Sully is averaging 15 FGA Per 36 Minutes and that is WAY too many attempts for a guy who just isn't a dominant offensive player. He needs to learn to let the offense come to him and to stop forcing things, and if he can learn that lesson he could be a very, very good player.
Some things I like seeing when Sully is on the court:
1) When he's playing 1-on-1 defense against physical guys in the post
2) When he's spotting up for those 15-18 foot jumpers (he's money from there)
3) When his getting offensive rebounds in the paint and going up strong for putbacks
4) When he's posting up, drawing defense in, then making pinpoint passes to cutting teammates
5) When he's getting easy points in the paint against guys with a size mismatch
When Sully is sticking to doing those things he's great, and at times even dominant. But he allows himself to stray away from his game too often and starts playing hero ball, and when he does that he becomes a MAJOR liability (as he did for stretches in that Utah game).
As I've said before, this is the thing that bothers me most with Sully. It's not even the physical conditioning - it's the mental discipline and the (at times) severe lapses in basketball IQ. He needs to learn to stick to the thing he's good at, rather than trying to be a star and force things.
I honestly don't care if Sully is 250 pounds or 300 pounds, as long as he plays the game intelligently on a consistent basis. You can't always control whether your shots fall, but you CAN control your decision making and the type of shots you take, and he needs to do a better job at that.
Sully is a consistently excellent rebounder, and that is one thing I cannot take away from him. But if he wants to help the team win he needs to consistently contribute in more ways than just rebounding. A guy who gets you 11 rebounds means little if that guy is also shooting you out of games.