Ryan Anderson can't rebound, put the ball on the floor, or finish inside. So saying Sully can become a poor man's version of that doesn't make much sense. If Sully lost weight and stayed healthy, he'd be more like a poor man's David West, or Luis Scola with 3 point range.
While I think there is still room in the league for wings without reliable shooting range, I don't think Jae Crowder has the size or skill to get by without it. He'll make it, or he won't, on the strength of his defense coupled with a credible three point shot from the corner. That and constant hustle will allow him to have a career a la Matt Barnes. Otherwise, he's a better version of Renaldo Balkman.
The knock on Smart's offense seems a little silly to me. His Field Goal % was ugly, but his Effective Field Goal % was actually decent among rookie guards.
If you compare his stats to other first year players over the last few decades, he compares fairly well. Some of the names that pop up (less than 40% FG, 3 or more assists, 3 or more rebounds, 1.5 or more steals, 1 or more 3 pointers made):
Kyle Lowry
Ricky Rubio
Jason Kidd
Jason Williams
Ray Felton
Jamaal Tinsley
Bobby Jackson
Jim Jackson
Most of those guys are pretty solid offensive players, with Rubio the major exception. In terms of overall career, they range from solid starters / quality backups to Hall of Fame floor general.
I'm not terribly concerned about Marcus Smart's offensive abilities based on his rookie season. I don't expect him to ever be dominant on that end, but I think he'll be an asset, and we know he'll never shy away from taking big shots. The biggest thing for me is that he showed he can hit the three pointer, and history suggests that like most players he will only improve over time from range. (
Here's a list of other guys who took a similar number of three pointers in their first year)
As for Turner, I've never been a big fan, but criticizing his conditioning seems odd to me. I never got the sense that being winded was his problem. He's just not especially strong or quick. Being fit and being ripped are different things.