Post#83 » by drza » Sat Jul 5, 2014 6:17 am
Re: Russell's impact, then and now
Then: Lorak has brought up some good questions about Russell's impact on those late 50s/early 60s Celtics. fpliii provided some very good information in response to those questions. Here are my current thoughts on the matter:
1) The previous body of evidence about Russell's defensive impact still holds sway for me in the face of the new information. Being able to trace the Celtics' success so directly to the team defense instead of the offense, having that defense so closely follow Russell's career, and having both the defense and the team success persist through more than a decade of interchanging parts still suggests strongly to me that Russell was the primary architect of that unit and the team's success.
2) Regarding 1959 in specific, I thought fpliii's post breaking down how the unit performances changed when Russell arrived was enlightening. Lorak has pointed out that the team was performing at a good level pre-Russell's arrival, which is both true and a fair point to raise. It also fits that (per fpliii's data) the pre-Russell team was having more success through the offense. Their personnel and improvements were primarily on the offensive side of the ball, led by their MVP point guard. However, I think the argument can also be made that there was not enough offensive upside with that unit to suggest that they could build a championship squad with that team make-up. There is gray area either way, but at the least I can say that there is no evidence that they could have built a championship squad in that way. Thus, though the team was successsful through those 24 games, I don't know that they had much upside.
On the other hand, according to fpliii's data, once Russell arrived we saw an immediate and pronounced change in the defense/offense ratio with the defense going from solid to elite. Lorak has focused on the net change with and without Russell, which is again both true and fair. However, the shift to the more defensive approach centered around Russell proved to be a championship-worthy model in that season. Thus, though there may have only been a small SRS improvement in the in/out data from 1959, I think it was a significant improvement because it improved the team to championship caliber.
Then, moving forward from 1959, we no longer have in/out data for Russell in a single season. However, we do know that the team results indicated a growing dependence on that elite defense that corresponded with consistently better and better team results along Russell's career arc. Taken as a whole, it makes sense to me that rookie Russell's overall impact was larger than the net result because his arrival allowed them to play their more defensive approach that the previous personnel didn't fit. This new approach raised the team's ceiling, and the impact of that defensive approach continued to grow from his rookie season on. I'll continue to evaluate if/when more data is brought to the table, but for now I'm still very satisfied that Russell's impact was real and massive...then.
Now. This has been a point of contention for many, who don't believe that Russell's impact would translate to the modern era. Translation isn't necessarily a required tenet for this project, but it is in play and I admit that it plays at least some part for me (e.g. it influences how I'll vote for Mikan in contrast to the way I'm voting Russell). So let me play out my thoughts on what Russell would look like these days.
I won't focus a ton on offense, because I think that's the area that requires the most speculation. We've seen these days that Kevin Love still has some success with outlet passing, that Joakim Noah has some positive results as a passing pivot from the high post, and that guys like DeAndre Jordan and Tyson Chandler have been able to forge a high efficiency/low usage living with mainly dunks and putbacks. So presumably these are some things that Russell could bring to the table. But we have no way to know whether Russell's other offensive skills might be more advanced if he came along today, and presumably even if it did he would still be primarily known for his defense. So let's get there.
If we look at Dr. MJ's spreadsheet of normalized RAPM results from 1997-98 to 2012, we get a good cross section of offensive and defensive RAPM values over a 15 year span in the modern NBA. The best 5-year offensive measurements over that span:
Steve Nash (average 5-year peak of normalized offensive RAPM: +9.1; avg. 3-year peak = +9.6)
LeBron James (5 yr pk avg: +8.1; 3 yr pk avg: +9.3)
Dwyane Wade (5 yr pk avg: +7.9; 3 yr pk avg: 8.7)
Shaquille O'Neal (5 yr pk avg: +7.6; 3 yr pk avg: 8.1)
Kobe Bryant (5 yr peak avg: +7.4; 3 yr pk avg: 7.8)
Overall: 5 yr peak avg: +8.0, 3 yr peak avg: +8.7
On the defensive side of things, excluding Jason Collins who had one massively measured year that skews his 5-year total, the best 5-year measurements over that span:
Dikembe Mutombo (5 yr peak avg +7.3; 3 yr peak avg = +8.7)
Kevin Garnett (5 yr peak avg +6.5; 3 yr peak avg = +7.1)
Tim Duncan (5 yr peak avg +6.2; 3 yr peak avg = 6.5)
David Robinson (old) (5 yr peak avg +6.2; 3 yr peak avg = 6.5)
Rasheed Wallace (5 yr peak avg +5.5; 3 yr peak avg = 5.7)
Ben Wallace (5 yr peak avg +5.5; 3 yr peak avg = 6.1)
Overall: 5 yr pk avg +6.2, 3 yr avg +6.8
A couple of observations:
*In general, the top offensive players measure out to have a bit more impact on offense than the top defensive players have on defense (by around 2 points).
*On the other hand, if you look at the 3 year peaks of Mutombo and KG, you see that they are much closer to the 3-year peaks of those top offensive stars. This is relevant because Mutombo has peak seasons prior to 1998 that may have been missed by the study, and KG's 3 year peak corresponded primarily to his time in Boston where he had a more defensive role even as his physical gifts eroded.
So now, let's look at Russell. By the measurement patterns of today he's 6-10 or 6-11, still an exceptional athlete in both the horizontal and vertical directions. At the very least, physically his gifts should closely replicate Garnett's. Stylistically, his horizontal game should also reasonably replicate Garnett's (pick and roll defense, area of help influence). However, Russell also was a demonstrated shot-blocker at least on the order of Mutombo. And if we're not postulating Russell to be a bigger offensive threat in today's NBA (which we didn't), then he should have at least the defensive emphasis of Mutombo or Celtics Garnett even while at his athletic peak. And Russell's genius about the game of basketball also translates.
Put those things together, and I don't think it's a stretch to believe that Russell's defensive impact could be as much higher than Mutombo's as Mutombo's was to Ben Wallace. Obviously I can't definitively state that this would be Russell's defensive impact, but based on my interpretation of the facts I speculate that to be a reasonable expected outcome. And if we use the marks that I described earlier, that would put modern-day Russell's peak defensive impact in the +11 - +12 range on this scale.
If you look at the total normalized RAPM results in the study, the top 3-year peak mark belongs to LeBron James at +11.8. Thus, playing out this thought experiment, I could very reasonably project modern-day Russell's defensive impact to be of a similar order to the highest peak overall impact we've seen in the past 15 years of modern NBA basketball. With the 3-point line. And modern rules.
Again, is this scientifically rigorous? Of course not...it couldn't possibly be. But I invite you to really work the experiment through on your own, and see if you come to a dramatically different conclusion. And again, Russell wouldn't have to have the same impact today as he did in his time to be worthy of a top vote. However, the fact that I can very reasonably project that he could have that level of impact makes it much easier for me to vote for him this high with confidence.