Mike G wrote:I don't actually give a whit about estimating possessions.
Urk!
Mike G wrote:Nor do I care to divide talents into 'offensive' vs 'defensive'.
Ack!
Mike G wrote:Too many plays are both.
What the hey? This is awesome (and not in a good way). I am prepared to believe that this diversion we engage in is not terribly progressive - when push comes to shove, sentiment and prior belief quite evidently are a stronger force than rationality - but retrogressive?
Mike G wrote:If there's a mad scramble for the ball, everybody gets two hands on it a time or two, one team or the other eventually gets it -- They may say it was possessed and surrendered 5 times by each team, or no times. Adding another 5 possessions (and/or 5 turnovers) doesn't really change either team's actual performance on either offense or defense.
Is it the case that over the course of a season there are some marginal calls in scorekeeping, where given a mad scramble for the ball, there are judgements made about whether possession was actually transferred and how many times? Sure. Is there any reason to believe that the judgement calls are typically or systematically wrong? Please. Is there any underlying conceptual controversy? Absolutely not. Whenever a player loses possession on such occasions, it is a turnover, a possession ended without a point scored, thereby implying a diminution of average offensive efficiency. And yes, it is most certainly the appropriate designation because maintaining possession of the ball is the precondition for scoring. But more importantly for, ya know, the actual discussion at hand, is there any plausible way to believe that these events are empirically relevant over the course of an entire season? No. Way. And just to get more specific still, the numbers I was using to estimate "TO - OR" hence possessions were representative not of just one season but many many.
Mike G wrote:If a team has a below-avg FG% and TS%, yet outscores the league by 5 to 10 points per game, there are 3 possible sources for their scoring advantage: Good shot defense (even worse Opp FG%), turnover advantage, and rebounding advantage. If you have an advantage of 5 in TO and another 5 in Reb, you have essentially 10 free possessions.
Stuff that difference in the denominator, and you could be either the best or worst offense in the league, in getting your 115 points.
Volte face? I thought we weren't interested in possessions, but now we reintroduce all the components that determine same. Alright. Decomposition it is. So yes, suppose a team has a below average FG% and TS%, say, like the 1963 Celtics. No wait, they weren't just below average; they were
the worst team in the NBA on these measures. But we proceed. How to possibly rehabilitate such an offense? Turnovers (they might have committed fewer of them) or so-called Offensive Rebounds (more plays per possession). And so we return to a possession-based perspective. The average is what it was (plus or minus just a little bit).
Mike G wrote:Don't take just my word on those Other Celtics. Russell was great, and Others were merely allstar and all-league. No other team was close to having as many in the interval. Without pbp and comprehensive video evidence, that (and their stats) is what we have to go by.
And herein lies the error. Accolades dispensed by sportswriters or whomever offer no relevant, primary evidence to the basic question at hand. Was the Celtics offense on average average (or below)? Yes, there is no reasonable question of this, and it doesn't require pbp or comprehensive video evidence just well-established basic accounting. Was the Celtics defense on average average? No. There is no reasonable question of this. The only question is partitioning such success between Russell and the Other.
Mike G wrote:You do know that in Russell's rookie season, Tom Heinsohn was ROY and an allstar.
After Russell's finale, Sam Jones (1 year removed from allstar, 2 from all-NBA) also quit.
I do believe I already made ironic mention of Heinshohn's rookie season, in the sense that his (and Frank Ramsey's) arrival coincided with the apparent deterioration in the offense. And as for Sam Jones, my understanding is that he was a very good defensive guard. But based upon all else we (should) know about the structural aspects of defense in the NBA, the drop in the retirement year could only be credited in lesser part to his departure.