shutupandjam wrote:Instead of attacking rapm, explain why Kobe's presence didn't make his teams' defenses better - was it a weird lineup phenomenon, was it a shifted team mentality, or something else? And, again, I'd still like to see evidence that Kobe was an elite defender other than his reputation and a few clips of him frustrating opponents on defense.
Kobe plays around 37 mins a game. So you're comparing 37 mins against 1st units(many of which next to guys like Fisher/Smush) to 9-10 mins of 2nd units playing each other, and then trying to extrapolate impact from that. You can't extract individual impact from lineup data, it's simply not possible. Even more, specialists who play a certain roles will be in lineups more favorable to their strengths(coaching 101), and will by default have higher rotational +/- numbers.
There is no "weird lineup phenomenon" causing the problem with RAPM, its the "normal lineup phenomenon" of having offensive minded lineup, defensive stop lineups, system dependent rotations, that cause the erratic lineup data. You can't turn lead into gold. RAPM is nothing but statistical alchemy.
Meanwhile, NBA coaches, scouts, players, GM, analysts, all have consistently praised Kobe's elite defense. Question....why do you believe Kobe's DRAPM, but not Divac's?? Should we believe Rashard was a better defender than the DPOY Dwight in 2009? How do we know when RAPM is right or not?
Like I said when RAPM first came up in the project, it's gonna take over things, and objective analysis will be pushed aside. And here we are.














