GSW's big 3 of Klay/Dray/Curry are
3 of the top 4 in on court Net Rating this season (along with Patterson) at +16.3, +15.9, and +15.0. Last season those 3 were the
top 3 among players with at least 1000 MP.
Noticeably, Dray and Steph are down 3 and 2 points respectively, but Klay is up a point and leading the league. Iggy is among the top ten again and GSW's performance with him on court is virtually identical.
GSW with Durant on the floor has been a +13.8 team, which is 2.1 pts/100 better than OKC was last year with him on the floor.
The 2017 Cavaliers, despite being a team 4.5 SRS points weaker than GS (and GS will go higher, IMO), are nearly matching the Warrior's starters performance with Lebron on the floor (+14.5).
Ross/Patterson/Lowry are all among the top 11, but Derozan lags behind, with clear separation from that group at +7.0.
Golden State's new death lineup (Green/Iggy/Durant/Klay/Curry) so far has not performed up to the standard of 2016, instead performing at about the level of the 2015 one (w/Barnes).
2015: 116.1 ORTG, 92.9 DRTG, +23.3 Net
2016: 143.3 ORTG, 99.0 DRTG, +44.3 Net
2017: 125.5 ORTG, 98.3 DRTG, +27.2 Net
Obviously, most of the season has yet to be played, however I do not believe they will touch last year's heights. Through 32 games, replacing Barnes with Durant in this lineup has not produced better performance. Logically, the conclusion must be one or a combination of the following:
Durant does not (yet) fit ideally with this lineup to the degree that Barnes did
One or more than one of Curry/Dray/Klay/Iggy has declined
Durant has declined to the point of being worse than Barnes
The SBDS this season has faced significantly stronger defenses than they did last year
First point seems fair to me this early in the season. Things don't click instantly and its not like the results have been poor by any measure.
Second point is also fair; its easy to point at Iggy but I also feel like I am observing a Curry regression (he has
not been the same kind of threat off the dribble that he was last season).
Third point is most obviously untrue - Durant has looked fantastic.
Fourth point is highly unlikely. I could check to see the defensive SOS of the 16 and 17 teams, but I doubt I'd find anything to of significance support the notion that 17 has faced tougher opponents on that end.
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Also, on a separate but related note, GS is now the league's best defensive team.
However, they are only a -4.5, weaker than the 16 Hawks (-5.0) and 16 Spurs (-7.4).