Barry O'Speedwagon
Coach
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Obviously stats are important because they give easily measurable metrics of performance in particular areas, they are a far more reliable source than opinion ( which will vary ) or memory ( recollection ) which is unreliable at best.
Problems arise with a lack of depth, and interpretation, I'd imagine, given they'd pay for them, Nrl coaches would get a hell of a lot more depth than us merkins will see for free on the interwebz, and make interpretations that are far more informed than those we can make based upon a dozen or so of the most prominent measurements.
You can measure anything in a game statistically, you just need to know what to look for.
Yep. They get stats of a lot greater depth (and disaggregation). I used to know the bloke who did stats for the Eels back in the B Smith era, and the level of detail collected then was quite extraordinary.
Doesn't mean that base all of your decisions (or many decisions) on this data. But, at the very least, detailed stats provided an objective set of data with which you can seek corroborating evidence of your intuition about how particular players are going etc. Sometimes you can get the feeling that a player is doing worse / better than they are because they do something dumb/great at a particular time in a game.