Seems people here have been able to stay
mostly respectful, so I'll take that sign of progress.
DraymondGold wrote:OhayoKD wrote:Since mj-topics tend to boil over, i'd like to preface this with a request that we all try our best to be nice to each other
I appreciate this OhayoKD
Before going ahead, let me just start out by saying I'm hoping we can avoid turning this into another Lebron vs Jordan thread. With that in mind, my personal focus here is not whether these metrics portray Jordan as the clear-cut best GOAT player, but whether they portray him as a GOAT
candidate. Do they merely portray him in the Top Tier of players for peak/prime.
I appreciate this sentiment but if this was your objective, I'm surprised then that you almost exclusively focused on the Lebron stuff. I think this part in particular is relevant when we are talking about
of all time tiers:
Keep in mind we don't have the data for players like Kareem, Hakeem, Bill, Magic, Bird, Walton, Wilt, or Russell. Jordan is competing in a very, very narrow field here and still doesn't look the best.
Saying Jordan ranks 3rd or 2nd behind other top 10 candidates in metrics that exclude most of Jordan's contemporary
and historical competition doesn't really work as proof he's "GOAT tier" unless we are using Colt's much, much broader standard. One you don't seem to follow considering that you have advocated for the exclusion of players for Duncan and Hakeem. This applies, I think to your assertion of AUPM as definitive proof(more on that later).
Additionally, when you are dismissing things that are directly drawn from winning like on/off(that directness is very much the
point of impact analysis) as useless while championing crude approximations because they make "corrections", it's probably relevant to consider when these corrections are actually making the data
more inaccurate:
As Lebron and Jordan are virtually tied on the offensive portion of all these metrics, simply replacing the defensive component with actual impact data, knocks Jordan off his perch. And remember, this is not including Kareem [streamable][/streamable]whose defenses were 4 points better, or Russell who won the most, by a landslide, on the strength of his team's defense.
BBR BPM is on par with RAPTOR in terms of predictive accuracy IIRC(notably behind direct rapm extraps. like EPM when tech is equalized). As far as BPM is concerned,
Jordan is a significantly better defender than Kareem. Simply
hedging between defensive impact signals and defensive box-score data knocks knocks Jordan out of range.
That a metric makes adjustments of some kind does not make it inherently better, and proper analysis involves weighing the merits and cons of different metrics and
then deciding what adjustments/caveats/context needs to be applied. There is a
trade-off here.
You get less noise, but you also get inaccuracy that skews towards a certain archetype. And when the "corrected" data is consistently disagreeing with "real" data, then adjustments should be made. That is the value of "raw" impact. And any credible impact analysis will factor in those types of signals.
The on/off Ben calced is, to my knowledge,
the only available sample of data which doesn't utilize an artificial scale and accounts for defensive impact. Don't you think the idea that we shouldn't
even consider this while we use metrics that
equate steals per game with defense a little silly?
I also think there are some basic inaccuracies here that we should address, acknowledging I was under the incorrect impression pre-97 aupm also lacked plus-minus data.
That being said...
DraymondGold wrote:rk2023 wrote:WOWYR is just like Adjusted Plus Minus (APM) to raw plus minus. It corrects for the context
WOWYR = Adjusted plus minus. There are problems we get with raw plus minus. We can get similar problems with raw WOWY.
...uh, no
Instead of using results from lineups within a game (play-by-play data) like traditional APM, game-level plus-minus uses final scores from game to game for the players from that game. This allows for a historical, apple-to-apples comparison of per-game impact from before play-by-play was available (1997).
As I covered before, the "correction" is
marginal. But frankly WOWY and WOWYR doesn't really make a difference here, because as long as you are using
large samples, even
corrected impact still has Lebron consistently looking better:
Before Michael, the 1984 Bulls were a 27-win team (-4.7 SRS) with an average defense and a futile offense that finished 5 points worse than the league (rORtg). Jordan immediately provided the scoring punch that they needed and Chicago improved to just above average on offense in his rookie year, with an overall improvement of nearly 4 points per game. In his second season, he missed a significant chunk of time after breaking his foot, then logged fewer than 20 minutes in each of his first six games back. Excluding those sub-20 minute games, the Bulls played 15 contests with Jordan at a 40-win pace (-0.3 SRS) that year.
The ’06 Cavs were even more impressive, thanks to a breakout year from James. With Ilgauskus and Gooden now accompanied by Larry Hughes (a moderate creator and inefficient scorer), the offensively-challenged Snow and two shooters (Donyell Marshall and Damon Jones), Cleveland churned out a 5.1 SRS when healthy (56-win pace) with a +6.6 offensive efficiency in 30 healthy games. A similar rotation ticked along at a 51-win pace in ’07 (3.4 SRS) in a larger sample, but the offense regressed to near-average, meaning the ’06 result was likely an aberration. (LeBron’s offense regressed slightly in ’07 too, likely contributing to the backslide.) Still, the period demonstrated that pre-prime LeBron-ball could buoy offenses while stuffing the court with defenders and a few shooters.
(The cavs were a -9 srs team before drafting Lebron)
Jordan also lags behind Kareem in larger(>10 games per season) samples,
and Russell.
and Hakeem. The most relevant part of WOWY vs WOWYR here is the inclusion of
82 game stretches in impact analysis. And I think you and I can both agree that full season samples can be very,
very useful, even if there's noise to account for. The only thing that has Jordan comparing favorably(to lebron,
not everyone in history) is
10-year data, but again, let's consider the sample in question:
colts18 wrote:OhayoKD wrote: What about the 8 years Jordan made an ECF (won 6 titles)? He missed a total of 6 games in those years. How can you talk about a stat when there is literally no sample at all during Jordan's prime? We have just one season at all where Jordan missed significant games. His 2nd season in 1986. After that he missed a total of 6 games in 10 full seasons with the Bulls.
Your 10 year-set is taking
2.2 games per season from Russell and then throwing less than a game a season for Jordan alongside a larger sample
from one season that does not compare favorably with Lebron, Kareem, Hakeem, Bill, or various other players I've neglected to mention(KG, Shaq, ect). And for all that, if we account for
certain eras requiring lower SRS for high championship probability...
At the height of their dynasty, the Celtics were comically dominant. From 1962-65, their average margin-of-victory (MOV) was over 8 points per game. During the same time span, only two other teams even eclipsed 4 points per game – the ’64 Royals and the ’64 Warriors. And all of Boston’s separation was created by its historic defense, anchored by Russell:
...Jordan is still
well behind Russell(and by extension Wilt):
Notably, if we take WOWYR seriously, Bill Russell led the greatest team ever with 35 win help throughout his prime while Jordan barely won half as much with 40-50 win help. While Jordan looks marginally better than Lebron, he's not really within range of GOAThood.
Just to give Jordan the slightest empirical advantage over Lebron, we reduced our per-season sample by a
factor of ten and Jordan still comes out
well behind Russell and Wilt(as well as Magic and D-Rob).
Regressed or non-regressed, if we use larger samples, Jordan
plummets relative to Lebron
and Kareem. We can discuss the merits of this type of data, but trying to paint his WOWYR stuff as some GOAT-lvl indicator doesn't really work. Notably, the disparity generally comes from the
defensive side of things. A disparity we shouldn't be surprised box-stuff can't account for. It's also a disparity many of the theoretical excuses made for the lack of comparable influence doesn't really consider(The 2015 Cavaliers say hello).
(2) The effect of good coach on WOWY: WOWY is sensitive to coaching. If a player is missing one game, for example, a poor coach may put less effort into adjusting the game plan than if a player is missing a lot of time in a row. If one coaching staff is much better than another coaching staff, the better one might do a much better job at filling in when a player is missing than a bad one. Jordan had great coaching with Phil Jackson. This is the kind of thing that would limit his raw WOWY.
The assumption that good coaching
must depress impact is questionable. In fact I would say bad-coaches failing to optimize a star player's influence is as common than the opposite. I'm also not sure why you're using a
one-game sample in your analogy when its multiple
82 game samples that are being relied upon the most here. If your theory holds, then the relatively pedestrian stuff we have under Jackson's significantly worse predecessors should be sparkling. Moreover, if you're concerned about coaching ajustments, then WOWY is really the way to go here, as it's much easier to make adjustments with some pre-time before a game or a season, than it is to make adjustments when a player leaves half-way through.
Frankly this is an exceptionally weak approach to take with say, Lebron, considering that Lebron looks
better in larger samples of "off", and his teams tend to look the worst when the team is given time to adjust. This includes his time under Erik Spoelstra where the heatles without Lebron did not look as good as the Bulls without Jordan
or the Bulls without Jordan
and Grant(at least by SRS).
Not to be too critical here, but this seems like another example where you've come up with a seemingly viable theory, without actually looking where the breadcrumbs lead.
WOWY(and WOWYR) is indeed noisy, which is why it's good to look for
replication across
a variety of contexts:
somewhat behind the best stuff we see from Hakeem(25 and 30 game lift in 20 game samples in 88 and 90), consistently behind Kareem throughout the 70's(30 win lift in 75, a 29 win improvement with a player similar to oakley as a rookie, 62 wins without his co-star, and takes the depleted remnants of a 30 win team to 45 wins in 77), and a pretty sizable gap compared to Lebron who has multiple 40 win signals for 09 and 10, 30 win signals in his second cavs stint, and is mostly operating at, at least 20+ win lift throughout his prime leading multiple teams to 60 or near-60 win basketball without co-stars on top-heavy rosters(cavs, heatles).
The disparity is
consistent. I don't need to cherrypick one year or approach to observe a gap. That's a pretty good indication that this can't just be put down to "noise". It's good to look at everything and assess the evidence holistically. The
best possible signal I can get for Jordan is to take record instead of srs for 1986, ignore 84, **** with the minute thresholds ,ignore Ben's much more pedestrian appraisal, pretend Oakley didn't help them defensively, and you get 32 win-lift for a sub 50 win team. That took many, many extra steps and it still doesn't get you to what Lebron does in 2009, 2010,
or 2015 and 2016. That 23 win-appraisal I throw around works on the assumption there was no improvement after MJ was drafted(again, ignoring evidence that Oakley helped alot defensively). "Impact" is just not a winning case unless you ignore the forest for trees. Speaking of which...
We have less than 20% of Jordan's games measured in Jordan's 6 best years, we have strong evidence that the games we do have underrate Jordan, and Jordan nonetheless comes out 8th all time, tied with peak 2013 LeBron. Again, LeBron's non-peak years may still end up being higher than Jordan.
As far as the data you're actually using is, 2013 Lebron
is not Lebron's peak, and the comparison here is
Jordan vs Lebron, not
"Jordan vs Miami Lebron" or "
Jordan vs whatever year of Lebron might give MJ a semblance of a case". You are more than smart enough to recognize the difference between letting the evidence speak and
strangling it so that it fits your priors.
You also neglect to mention that the data we have for
1988 actually skews in Jordan's favor as the Bulls did
worse during the portion of the season we don't have data for. As I'm sure you're aware, there's plenty pointing to 1988 as Jordan's most "imapctful" season and that conclusion would actually fit the "bad coaching" theory you offered earlier. It is fair to point out uncertainty, but trying to take data that clearly favors Lebron as actually "pro-mj" because more data
may improve how Jordan looks is a bit of a leap. As it is, we do have playoff on/off here, and it doesn't support that conclusion. Jordan's on/off arcs downward(in line with a defensive decline observed in both Blocked and Ben's film-tracking) from 1988 to 1993 before rebounding for the second-three peat. As it is, Jordan's 1988 also scores near the top in the offense-skewed stuff you seem to prefer, so this honestly seems like a questionable prediction.
Also important to note, before we use "tiers" to explain this away, this data only really exists for the peaks of post 1997 greats(and MJ), so Jordan only looking sizably worse than one modern player(doesn't really look better to me than duncan or kg here though maybe an expert like Jaivi can offer some distinction), doesn't mean he's "close" to being "the greatest". He flatly doesn't score close to Lebron here, and we have no way to know if that would apply to players like Wilt, Russell, or Kareem. Notably, RAPM consistently places Lebron well ahead of the likes of KG, Shaq, and Duncan(I recall seeing a 5 year average where the gap between lebron and 2nd place KG was similar to the gap between KG and 7th place Nash), players who, with more "apple to apple" pure impact analysis look quite comparable to Jordan. Crude comparison, but at this point it's a straw on a camel that broke yesterday. It's not as emphatic as WOWY(regularization will do that), but it's just not a winning case for puffy-j.
To me, a more fair characterization of the box-approximations of PIPM and RAPTOR is that they predict true plus-minus-based PIPM and RAPTOR, with wider error bars than the plus-minus based ones.
Sure, but it's not just
"wider error bars", it's
"wider error bars largely because they ascribe outsized(relative to historical precedent and actual impact signals) defensive value to smaller steal and block accumulators." But even then, looking at the metric that accounts for defense best...
And that if Jordan looks comparable to LeBron
But he doesn't. You specifically chose a favorable frame of comparison for Jordan(3-years consecutive), and Lebron has, not one, but
two better stretches when we utilize that frame. Going off the data RK listed, Lebron has the
2 highest scoring years(with 2009 being far ahead of anything else), and
5 of the best scoring 7. I could literally chuck the
best scoring year by far, and Lebron would
still look better. Jordan does not look comparable, and he does not rank
3rd-all time, he ranks
3rd among the players we actually have data for. PIPM dates back to 1977. That leaves at least 2 players with consistently better impact indicators completely out of the room.
As for AUPM, you can shake off Lebron if you use a three-year frame(note I said "generally speaking" and "most comparative frames" as qualifiers), he still falls short here to Duncan. Considering that AUPM is constructed as a combination of on/off and BPM, that Duncan grades out #1 here is rather impressive, especially since we are using a frame of comparison(3 years consecutive) that gives him the best looking case. And remember, Jordan does not score "2nd all-time", he scores "2nd among a minority of historical players in this specific metric using the most favorable possible comparative lens". Considering you
don't have Duncan to have "GOAT tier" impact indicators, it seems logically inconsistent to me to argue that impact-data potrays Jordan as a "definite GOAT-tier player"
...Duncan scores higher in aupm despite aupm being partially constructed with BPM, scores as high as a pretty optimistic MJ WOWY appraisal in injury plagued 04/05, looks similarly dominant in RAPM stuff(though this gets very noisy with different scales), and won 57 and 62 wins at his most valuable looking stretch as opposed to 50 for Jordan in 1988.
Hakeem looks better if you use his very best WOWY samples, looks better in his first three years, and looks similarly impactful throughout his prime, while scoring higher in postseason PIPM(the box metric which most closely is tied to actual defensive impact.(remember that pre 97, none of the "plus-minus" stats you reference have plus minus(or film tracking)). Hakeem also scores similarly in 97/98 on/off despite arguably being further from his peak than Jordan was those years.
I don't mind different definitions, but I think its a good idea to keep our thresholds consistent. When you tell me someone has GOAT-tier impact stuff, I want to see something that suggests you were the greatest. Maybe you're using a more liberal definition, but I don't think consistent application leaves Jordan significantly above TD and The Dream.
I think this is flat-out untrue. Jordan's playoff Augmented Plus Minus, based on actual plus minus data, is better than LeBron's. His WOWYR is over LeBron/Russell/Kareem. And all the approximations of more accurate stats we have show him as GOAT tier.
In AUPM, Jordan looks worse than Duncan and better than Lebron in one framework while looking worse than LBJ in most others. That is also
just a fraction of nba history being accounted for.
His WOWYR is flatly worse than Russell's(and Wilt) over 10 years(when we adjust for lower srs-championship tresholds), and when we take >10 or 82 game samples instead of a sample of
6 games over 8 years, Jordan scores well behind whether you prefer WOWY or "corrected WOWYR. I also don't know what you're basing these metrics being "the most accurate" from. The box-stuff specifically gets less noisy by chucking out defensive accuracy and the more useful method(imo) where we just replace the defensive box-score with defensive impact, immediately sees MJ plummet.(Jordan is tied or ahead of Lebron in D-RAPTOR, ahead of Kareem in BBR D-BPM, well, well behind on D by basically all impact stuff).
Perhaps these stats aren't as bad as PER, but nonetheless, they skews heavily towards Jordan(at least relative to the history of great defenses, and the "real" impact signals of the players in question), and Jordan
still does not get #1 if it has actual on/off or plus-minus. Coincidentally, his actual on/off looks much, much worse, as does WOWY and adjusted WOWY over serious samples(>10 games).
If you loosen you definition of Impact(non-plus minus RAPTOR and pure Box with weak correlates) you can get Jordan there(along with someone like Duncan), but I feel my definition of "impact" is more in spirit with what impact denotes and is ultimately more useful.
Accept or reject that, but consistency is key:
...Duncan scores higher in aupm despite aupm being partially constructed with BPM, scores as high as a pretty optimistic MJ WOWY appraisal in injury plagued 04/05, looks similarly dominant in RAPM stuff(though this gets very noisy with different scales), and won 57 and 62 wins at his most valuable looking stretch as opposed to 50 for Jordan in 1988.
Hakeem looks better if you use his very best WOWY samples, looks better in his first three years, and looks similarly impactful throughout his prime, while scoring higher in postseason PIPM(the box metric which most closely is tied to actual defensive impact.(remember that pre 97, none of the "plus-minus" stats you reference have plus minus(or film tracking)). Hakeem also scores similarly in 97/98 on/off despite arguably being further from his peak than Jordan was those years.
IIRC, you have dismissed both Duncan and Hakeem as having GOAT-level data on multiple occasions. If Jordan's impact stats potray him as "absolutely GOAT-Level at his best", why don't you extend that for Hakeem and Duncan who do just as well if not better using data which actually has "impact" in it.
Is Duncan a GOAT candidate according to "impact"? If so, sure, put Jordan there. If not, then I don't think MJ really has a case(at least if "impact" is the lens).
And yes this post was brought to you by the San Antonio Spurs
