
Originally Posted by
CDu
I definitely think +/- is meaningless, even over a full season. But azzefkram wasn't interested in discussing BPM (which clearly favors Young), so I was trying to be polite and use a framework that azzefkram might acknowledge. But I would absolutely prefer to be talking about things like BPM, and in fact that's where I started in this discussion a few steps before you jumped in.
I completely agree. I'm not saying your theory is wrong. I'm just saying there aren't data to support it. There are two separate discussions going on: (1) has the team been more successful on the floor with Young vs Lively? And (2) has that story flipped recently? The overwhelming consistent answer to (1) is "yes." I was using BPM to say that, and then switched to +/- begrudgingly to show that even the +/- (which are meaningless) don't support the idea that the team plays better with Lively in. That's what azzefkram and I were discussing.
You changed the discussion to talk about the second question. I don't think we have enough information to assess the second question.
I'm saying that if one is going to use +/- at all, then season-long is the only +/- stat that is even remotely close to worthwhile. As I said above, I'd much rather be talking about this using BPM. I definitely believe that even season-long +/- is pretty worthless, but way less worthless than a single-game +/-. But the participants in the discussion refused to consider BPM, so I was taking the only other track possible.
And I am not saying your theory is wrong. I'm saying that we don't have any sufficient evidence to assess it at this point. It's certainly possible that your theory is right. I just wouldn't say the +/- is a strong argument for it, nor would I say his efficiency is a strong argument for it (at least not yet; that could eventually prove the case).
CDu and Kedsy, it appears, are in "violent agreement."
Sage Grouse
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'When I got on the bus for my first road game at Duke, I saw that every player was carrying textbooks or laptops. I coached in the SEC for 25 years, and I had never seen that before, not even once.' - David Cutcliffe to Duke alumni in Washington, DC, June 2013