Measuring efficiency in the NL, again

The motion chart/data set I've been working on is now at steady-state. I'll try to update this every Monday, not because you care, but because I'm curious about what this will look like. There are a lot of ways to figure out how well a team ought to be doing, and this method is by no means as straightforward as the simple Pythagorean theorem method based on runs scored versus runs allowed. But it does make for some very pretty pictures, and some estimates of losses due to offense versus pitching/defense (assuming all teams' have around the same variance in runs scored from game to game). There's a walkthrough in the second tab that takes you through some potentially interesting views of the data.

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