A lot of people were writing off Sully before the season, but I kept pointing out that he actually looked really good right before his injury... and played fairly well in limited minutes during the playoffs. Nothing about his early season success surprises me.
I think a big key factor here for Sully (which most seem to not recognise) is that he is playing the lowest minutes since his rookie year - I have no doubt that this probably has a huge impact on his stats improving, and it wouldn't surprise me if that's a strategic move by Ainge / Stevens.
If you look at his Per-36 numbers very little has actually changed. His scoring, assists, fouls and turnovers per 36 are all dead on where they have been the past three years.
As far as shot attempts the breakdown is still similar - he's still taking almost as many field goal attempts from beyond the three point line (24.7%) as he is from inside 3 feet 27.3%). He's still taking about 25% of his shots from long two range (from 10" to 3PT) and his free throw rate has dropped (now 3.9%) as it has every season in the league so far.
The current free throw rate is horribly bad, and certainly must be one of the worst in the league for a starting big man - he has attempted only 3 free throws in 8 games played.
So his game hasn't really changed, the only differences from last year really are that his rebounding numbers, FG% and 3P% have increased in a really big way.
Honestly, I don't think the current rate in either category is sustainable and I think his FG% will eventually drop to around 45%-47%, his 3PT will eventually drop to about 34%-36%, and his rebounding Per-36 will eventually drop to around 11.
If his minuted played jumped back up to 27-28 MPG (where it's been the past two seasons) then I suspect conditioning will become a factor and those categories will drop back down (in a big way) to around what we saw last season.
Either way i'm not complaining - if playing him less minutes makes his stats improve to such a degree, it just increases his perceived value
if a nice trade opportunity does come along.
For now though I like what he's doing out there. I wouldn't be against signing him to a long term contract, but I think his minutes need to be restricted to no more than 25 a game in order for him to keep up the type of effectiveness he's had this year - and it's hard to offer big bucks to a guy who you can't play more than 6th man minutes.