Some rather good discussion happening here. Thanks for the well thought-out contributions, all.
One thing I keep asking is: Are there any "fit" issues happening with the Thunder?? What I mean by "fit" is that a player's impact is greatly affected by the particular roles of the players on the court. I've been looking for situational impact in the units on basketballvalue.com: I'm not finding anything. But the reality is that I don't know OKC's personnel very well, so I'm curious about whether there's something I'm missing.
For example: in 2009-2010, of the 9 Suns players with the most minutes, the four lowest APM scorers were the four guys who don't shoot three pointers: Amare Stoudemire, Lou Amundson, Grant Hill, and Robin Lopez. The Suns usually had 2, 3 or 4 3-point shooters on the court. Almost without exception, the Suns were much more effective with four 3-point shooters on the court. Stat, Lou, and Fropez were all decently effective if they were the lone paint-dweller, but not if two of these three were out there together. APM doesn't distinguish between those role differences, so Lou gets poor APM numbers even though he was actually very, very effective when he was paired with Frye.jambalaya wrote:[Collison's] past 2 seasons may have been his peak, a great role, and / or influenced by error in the estimate including multicollinearity issues with Green. Or he could show that he has more great impact seasons left.
First of all, Green's impact has to be limited because:
-good basketball is good basketball. One way or another, OKC was playing really, really good basketball with Collison on the court: 12 of his 14 units in the 2010-2011 season have a positive APM score, and his raw on-court rating was +11.13. That is not effected by Jeff Green. That +11.13 was 4th in the NBA, behind only Garnett, Ginobili, and Bosh, and the only other OKC player in the top 45 is Maynor.
-Collison's raw on/off numbers are superb for the 2011 playoffs, after Green was no longer on the team.
Now let's suppose that Collison had a "great role" for the past two seasons. Is that a bad thing? APM/RAPM is ALWAYS, ALWAYS, ALWAYS situational. But that's ok: a player's impact is situational because
basketball is situational. Every stat is situational. That doesn't matter if you're a ball-dominating "star" or a behind-the-scenes defensive "star"--you have to be around the right people to be effective.
jambalaya wrote:Battier only pulled 2 seasons clearly above +2 on RAPM. Morey traded for him and Battier never duplicated those numbers in Houston. Either he peaked in Memphis or there were some multicollinearity issues that heightened his apparent RAPM value or both.
Or, there were some multicollinearity issues that REDUCED his apparent RAPM value in Houston. Thing is, Houston was really good with Battier. In 2008-2009 the Rockets could have won the title if both McGrady and Yao Ming hadn't gone down with injuries; they still pushed the Lakers to seven games. The raw on-court data shows that the Rockets were playing superb basketball with Battier on the court . . . but Ron Artest was also there. You couldn't have a closer imitation of Battier's skillset. Raw on-court team leaders goes like this:
1) Yao +8.63
2) Artest +6.48
3) Battier +6.47
So Artest and Battier stole each other's thunder, but that was really, really good basketball. Now Battier isn't an offensive spark, so he needs to play next to guys who can create offense . . . which hasn't really happened since those McGrady and Yao injuries in 2009 (although Conley-Mayo-Battier-Randolph-Gasol was starting to look scary good).
If Steve Nash and Chris Paul were on the same team, the offense would hum but each player's RAPM value would suffer. The exact same thing happened with LeBron and Wade: In basketballvalue.com's one-year APM, LeBron and Wade went from #2 and 4 in the league in 2009-2010 to 13 and 24 in 2010-2011.
jambalaya wrote:On Ilardi's 6 year traditional APM Collison ranks about 33rd among smaller minute players.
I'm looking at Ilardi's 2007-2008 multi-year APM results posted on 82games.com: on that one Collison is 37th in the big minutes grouping. Is Ilardi's 2008-2009 study considerably improved for some reason? Why isn't it posted on 82games.com? And why are you guys ignoring the 2007-2008 results?
I guess the big question going forward is: Where does Collison land in RAPM after the 2011-2012 season (assuming there is one)?