drza wrote:According to Ilardi's 2004 - 2009 APM calculation (just catching the peaks of both players, with more of Dirk's offensive prime included than KG's), the top offensive players in the NBA over that stretch were: Steve Nash (+8.8), LeBron James (+8.0), Kobe Bryant (+7.6), Chris Paul (+7.5), Dwyane Wade (+7), and...Kevin Garnett (+6.3). Dirk also measured out extremely well on offense (+4.7), but it certainly wasn't an area where he put any space between he and KG.
It is actually from 2003 to 2009, which means it includes the best seasons of Garnett in which he posted incredible high APM numbers with +23.2, +19.0 and +16.3 as his best 3 years. Nowitzki can't touch this, especially during that time span with +14.8, +11.6 and +10.8 as his best seasons. The interesting thing is that Nowitzki posted higher APM numbers in 2001 and 2002 than Garnett. And since 2009 Nowitzki has now 3 seasons in a row with a higher APM. So, outside of the time span of 2003 to 2007, Nowitzki has actually better APM numbers in average. And while we can easily assume that Garnett makes the bigger impact on defense (which is backed up by all available DAPM numbers), we have to make the assumption that besides Garnett's 3 freak years, Nowitzki has a higher offensive APM than Garnett.
To give an impression here we can use RAPM numbers, the offensive RAPM by Engelmann for Nowitzki vs. Garnett:
2006: 3.9 vs. 1.4
2007: 4.5 vs. 1.7
2008: 3.6 vs. 2.5
2009: 1.8 vs. 0.9
2010: 1.6 vs. 0.2
2011: 4.5 vs. 1.7
2006-2011: 6.5 vs. 2.9
2008-2011: 5.0 vs. 1.1
In all of those instances number for Nowitzki is higher than Garnett's. Thus we can assume that the 2003-2009 values are heavily influences by 3 years only in which Garnett had indeed the higher offensive impact.
Well, overall Nowitzki is a level below Garnett in terms of peak regular seasons. So, the only argument for Nowitzki would be the longevity. Nowitzki has again a +14.4 APM, he is leading the league in RAPM with +7.3 so far. If we complete the numbers from 1999 to 2010 with the current numbers, we are getting an average APM for Nowitzki and Garnett of +10.7, better than any other player during the time span. Duncan ends up with +10.0 and James with +10.6.
The difference between Nowitzki and Garnett is the consistency. Nowitzki has a standard deviation of 2.2 while Garnett has 6.2. Now, the question would be: Do I take the player who is more consistent in a 12 year span or the guy with the much higher peak (btw, Duncan has also the higher peak values in comparison to Nowitzki)?
If we look at the boxscore numbers from 2000 to 2011, we get this:
RS:
http://bkref.com/tiny/vuNWFPlayoffs:
http://bkref.com/tiny/jHO2aNowitzki beats out everyone in terms of WS over that time span. And he seperates himself more better in the playoffs from Garnett. That is an important thing to consider here. But we also have to keep in mind that Garnett missed the playoffs during his prime due to a freaking bad supporting cast, thus the numbers in the playoffs are biased against Garnett.
Anyway, for the timespan from 2000 to 2011 Nowitzki can be placed ahead of Garnett. Now, Garnett has a couple of more seasons and the much higher peak level (even though Garnett never reached Nowitzki peak level play in the playoffs, if my calculations are correct, Nowitzki has a +25.7 APM and a +12.6 RAPM in the playoffs this season so far, additional to that a league leading 29.2 PER and 0.289 WS/48, Garnett never had a playoff season with a better than 26 PER or 0.26 WS/48, Nowitzki has 4 of those). So, if we rank by "prime" Garnett takes that, if we rank by overall average playing level + longevity Nowitzki has a chance to catch up Garnett in about 1 or 2 seasons.
drza wrote:But that's the point...there WAS another star that Pierce was playing off of. And that other star led their team in scoring over a championship run...yet, because of Pierce's name KG gets no credit for that. It's just a weird dynamic.
Correct, Garnett was the better player and first option during the 2008 championship run.
Edit:
drza wrote:Well, Engelmann has a 5-year APM calculation from 2007 to now. I don't know how the absolute magnitude of the numbers match up between Engelmann's and Ilardi's calculation styles, though I will note that several players look pretty similar on offense (Nash +8.8 in Ilardi/ +8.9 in Engelmann; LeBron +8.0 / +6.8; Kobe +7.6 / +7.3; Wade +7.0 / +7.6).
Ridge regression will surpress the outliers closer to the mean. The crazy high numbers of Garnett and Duncan during the mid 2000's would be likely around what we can see in RAPM now for a guy like James with +10 in a long term sample and around +7 in the short term sample. Just to give you an impression.
It should also be noted that RAPM is the better APM in terms of predicting out of sample data. That is outlined by Engelmann (2011). Engelmann also has a link to Joe Sill's paper about RAPM, that is a great read to start.
PS: I hadn't seen your post when I started writing mine.