Dr Mufasa wrote:The thing about pace adjustment is that there's a long history of it screwing up PER and WS stats to me. Like, I know Steve Nash should have much higher offensive win shares in 2005 than Marbury or Billups. I know that Billups dropping from 23.6 PER to 18.8 PER in Denver despite it being clear that he was the same guy, is wrong. I know that in 09 the gap between Kobe and Wade in PER being 24.4 vs 30.4 is wrong. I know that Magic's WS numbers are a complete disaster for the validity of the stat, his best WS season before 87 ranks #237 all time and below seasons by the likes of Hardaway, Schrempf, Arenas, Brand, Billups. His best OWS season period ranks 49th and his best before '87 is 85 ranking 193rd, below Schrempf, Brand, Bailey Howell, Chet Walker, Marbury, Rudy T, Dana Barros. Steve Nash ranks 179th in 2005 and 137th in 2006. Alex English does not have a top 250 OWS season and Kevin Johnson's only one is in 97 (and any stat that says KJ's best offensive season is 97 clearly has something wrong)
I don't understand how you blame these issues on pace adjustment.
Nash & Magic are underrated by PER and WS because the ability to play floor general at genius level is severely underrated by box score stats. It has nothing to do with pace really, and even if it did, using the fact that Role X gets underrated by a stat to postulate that a player in a completely different role might get massively underrated to is wild speculation without any basis.
Also, Magic's PER & WS numbers go up when he starts scoring more. There's nothing really mysterious about that.
That said, pace adjustment is central to Billups' situation. I don't personally see that as particularly damning (as I said, if a guy is being used less per possession than before, that means more of the onus is on his teammates even if he still has the capability to take on the larger usage he had done before), but it's a valid point on your end...
Dr Mufasa wrote:I just see a clear pattern of it pace messing up the numbers as much as it helps. I believe in the case of Monta Ellis and Kiki Vandeweghe, it's a good thing pace is there to downgrade the numbers, and for a guy like Dirk, that he gets his numbers raised by the slow pace. But there's just as many cases with the Magic and Nash's where it clearly messes up the numbers. I believe there is far too many case by case variance to just wrap a pace adjustment blanket over all the players and expect reliable results, some players it's going to help their stats, some none at all
...but then you lose me again. So it's wrong to knock English based on pace, but it's fine to knock Kiki whose scoring as English's teammate peaked at the same level as English? I mean could it be any more clear that you're starting with conclusions elsewhere, and then taking only the statistics that agree with your opinion?
(And again, Magic & Nash's stats are in now way about pace. The far bigger issue is that BBIQ is underrated by box score stats)
Dr Mufasa wrote:As for APM, I like the stat but when I see Scola, Noah, Haslem, Bowen, Redick, Matthews ranking from mediocore to bad, let alone clear stars like Melo, Deron, Amare, Rose, Joe Johnson, Ben Wallace, Rondo, I can accept Melo's number much easier. I have next to 0 doubt about just about everyone on that list, guys like Scola and Bowen are precisely the type that should do well in advanced stats - and I only need a few to confirm that APM can and has been wrong. My general take on APM is when players are way up on the list like a Manu or KG or players are way down like a Jeff Green or Bargnani, they're probably onto something. Everything in between looks far more random to me. And in Melo's case having him rank top 20 in offensive APM and just having most of it wiped out by defensive stats means as much to me as his overall number anyways, I feel like I know exactly what Melo is defensively, you can fit him on a just fine defensive team due to his athleticism, he's not going to be standout, but like most perimeter players as long as they don't completley miss what's happening on defense like George Gervin or Michael Redd it's not going to set you back or prevent you from playing good defense, which the Nuggets have done.
In general with APM, I'm quite reluctant to make strong statements about players unless they are supposed to be stars and I have a lot of data to work with. The reality is that if you aren't the player the team builds around, then your impact is at the mercy of a good amount of things beyond your control. And of course, small sample size is a problem.
The reason imho why there's reason to think APM works as a judge of stars is simply that stars in basketball have such HUGE impact. I mean, LeBron leaves Cleveland, they get 40 games worse in an 82 game season. In baseball, even the best players are only adding about 10 wins in a 162 game season. When impact is that huge, there's every reason to believe that over a multi-year span we can see who truly is and is not having top tier impact. And of course, if you look at the leaders on multi-year lists, they tend to look really damn good.
So when we see who is supposed to be on that level be instead way down with the common people year after year, to me that is pretty definitive about a player's actual imapct.
Now to be clear: This does not necessarily mean that the player in question isn't capable of much greater impact. It's entirely plausible that Karl has simply refused to tailor the Denver offense to Melo as much as he could and that in a new setting, will see some huge impact from Melo. But if Melo was having massive impact in Denver, I think we would have seen some statistical evidence of this after 8 years...
Re: "know what Melo is defensively". Right, I understand your rationale. We've got some proof he's good at offense, and you believe in the right setting, his defensive woes could be neutralized, and I suppose my main thing is again that you should really be careful about doing so much extrapolation about what a player truly is as opposed to he actually did.
I'd also note though that it's not like Karl has a rep for being an entirely inept defensive coach, right? Seattle got to the finals on a team with an elite defense, and in general as you've noted the Denver defenses Melo's played on have been solid if not spectacular. Bottom line, if there was a really stupid easy way to make Melo not be one of the worst sieves in the entire league, I'm sure Karl would have implemented it.
Dr Mufasa wrote:My counterargument to your 'stats don't back him' point is that they do - it's just raw stats can be as informative as PER/WS/APM. In this case he is a 25-28ppg scorer on one of the best offenses in the league at his best, and he passes the logic test to me as someone who's helping his team get open shots by attracting defensive pressure
Well, that's coherent at least. Clearly we just see this stuff differently. When we have 3 extremely different advanced stats all saying the exact same thing ("Melo is not that impressive"), and we've now seen the player leave the team and the results agree with the advanced stats, and the coach has talked about the joy of coaching a team without said player, I don't see how all of this can be ignored.