colts18 wrote:89: Year before Robinson; 21-61, -7.45 SRS, 107.9 D rating (+0.1 relative to League average), 13th
The Spurs had the All-defensive team Alvin Robertson who won the DPOY just a few years earlier
90: Robinson Rookie; 56-26 (+35 wins), 3.58 SRS (11.03 SRS turnaround, 2nd best in history), 104.2 D rating (-3.9 LA, 4.0 turnaround relative to LA), 3rd
Robinson’s stats: 96.8 D rating (2nd), 7.2 DWS (2nd), 3.9 Blks (3rd), 5th in WS/48
The Spurs lose all-defensive team Alvin Robertson. Add Robinson, Cummings and Elliot but only Robinson is the one with a defensive reputation. This is the biggest turnaround in NBA history at the time
You're saying a 4.0 turnaround relative to LA was the biggest in history at the time? That's kind of amazing. I'd love to see your lists on this.
I can tell you that ElGee's estimates put Russell's arrival in Boston at a 6+ defensive turnaround in a league where the previous year the total range of defense varied less than 6 points. Whereas in Robinson's rookie year the range was over 10 points, which would imply that if there were no factors other than those two players, Robinson was having an impact that could lift the team up a bit less than halfway up the league's defensive ladder while Russell could literally make the worst team the best on defense. So obviously that implies an edge to Russell there even if it is clearly not complete enough to take too seriously.
I can tell you that when Russell retires we see another 6+ defensive turnaround relative to league average in the other direction, though now in a league with a defensive range more like Robinson's era, so by that point Russell was certainly not a worst-to-first guy.
I can also tell you that in that same year ('69-70), the Knicks saw an improvement of just over 4 on defense relative to the league average. And that in '70-71, the Bucks saw a raw defensive improvement of 5.5 (ElGee didn't do a league average this time so I don't know).
Also of note, the '71-72 Colonels of the ABA, who showed a defensive eFG shift of 0.24 which is slightly more than the '89-90 Spurs (0.23).
But I don't say this stuff to say "Gotcha!". Your assertion is clearly too bold, but it's not exactly easy to get all this data, and if those Spurs truly had the biggest DRtg turnaround b-r had posted to that point, that's good to know.
colts18 wrote:
His first 1st place finish
92: 47-35, 2.81 SRS, 104.1 D rating (-4.1 LA), 1st , DPOY
DRob: 94.1 D rating (1st), 6.9 DWS (3rd , would finish 1st if he was healthy), 4.5 BLK (1st), 2nd in WS/48, 2.3 Steals per game (5th)
The 1st place D rating is amazing considering Robinson missed the last 14 games and playoffs. They finished 1st despite collapsing without him. This season might be Robinson’s best GOAT defensive case.
-68 G played: 102.6 D rating, 70.4 Dreb%, .512 TS%, +4.7 MOV
-14 G missed: 111.6 D rating (-9 D rating drop), 65.6 Dreb%, .534 TS% (2.2 TS% drop), -3.3 MOV (+8 with Robinson than without)
+9 D rating difference, -4.8 Dreb%, +2.2 TS%, +8 MOV
-Playoffs w/o Drob: 119.6 D rating, 63.2 Dreb%, .578 TS%, -9 MOV
As you can see, the team collapsed massively with almost all of it due to the team’s defense. The team went from -6.6 from the league average (this year’s Bulls level) with Robinson to being +3.4 from the league average which is 2nd to last. So Robinson was the difference between a dominant #1 finish and the 2nd worst defense in the league
Gotta be really careful here. Teams can easily coast down the stretch, and a 3-game sample size from the playoffs is sooo small.
That playoff series was against the offensively excellent Suns, who had done quite well against the Spurs in the regular season even when Robinson was in there (the Spurs had a -6 MOV in those 3 games, and yes I feel weird using "MOV in those 3 games").
colts18 wrote:1997: 20-62 (39 win drop), -7.93 SRS (13.91 SRS drop), 112.3 D rating (+5.8 LA), 29th (last)
This is one of the biggest declines in NBA history. The team dropped 9.9 D rating points relative to the league.
This is definitely something to bring up here, and it along with the next thing really hammer in the implication that Robinson might have been a +/- force for the ages.
colts18 wrote:1998: 56-26 (36 wins turnaround), 3.30 SRS (11.23 SRS turnaround), 99.4 D rating (-5.6 LA) (+12.9 D rating turnaround), 2nd
DRob: 93.6 D rating, 6.0 DWS (2nd), 2.6 BLK (5th), 1st in WS/48
Robinson engineers arguably the greatest Defensive turnaround in NBA history. The Spurs go from 3rd to last, to 2nd in D rating. A 13 D rating impact is absolutely ridiculous. That’s like the difference between the best defense and the Raptors. Robinson’s defense gets even better after his injury. Robinson missed 9 games and his impact did show.
With Robinson: 98.8 D rating, .480 TS%, 4.37 MOV
W/O Robinson: 103.9 D rating, .509 TS%, 0.89 MOV
Difference: +5.1 D rating, +2.9 TS%, +3.48 MOV
This whole thing should be used to argue for Robinson, but the way you've presented causes me to rebut.
You're saying he led a 13 point defensive impact, and then backing that up with specific in/outs that show him with a 5 point defensive impact. How is it not a salient point that there is an 8 point difference between those two impacts?
While we're at it, how is it not worth mentioning that Robinson didn't lead the team in blocks or rebounds that year, and that the guy who did would become the head of the greatest defensive dynasty in history since Bill Russell?
I mean, those facts aren't necessary when simply saying Robinson was good at defense, but when you're arguing him as Defensive GOAT, and the most amazing fact in his entire career really appears to imply that he may not have been the best defender on his team, this is a problem.