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Originally Posted by Flames Draft Watcher
I very much agree with most of what you've said.
However Corsi was presented as a "possession" stat. It does not directly measure possession. Therefore the stat has been miscast and misleading from the very beginning by the way it was presented initially. I think its application and interpretation has been questionable from the very beginning and I think thats why a lot of people are skeptical of advanced stats and their value. Surely someone can compile actual possession numbers based on time spent controlling the puck. That would actually measure possession. Corsi meanwhile should have been presented as merely a shot differential and nothing else. The advanced stats people hurt their case right from the start by using stats that measure something to stand for something else.
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Early in the Corsi days someone did do this work at shot attempts did correlate well for posession. The best I can find now googling quickly is a hfboards thread which has dead links to the original work.
But the concept of Corsi being a measure of posession was at least validated early on the the Corsi days. No idea if that still holds since advanced stats became a thing or of knowledge of the measurement changed the results..