Huh? Isn't that exactly what this analysis does?To take it even further, and honestly, quite a bit more work, the +/- should be weighted based on minutes played. For example, Grabavoy playing 10 minutes and going -2 in a game is weighted much heavier than playing 90 minutes and going -2.
Like I said, its a ton more work, and work that I'm definitely not going to do, lol