And I'm not arguing Mauer is irreplaceable at first base, or that a lot of offense at first base can't make up for subpar fielding there. My belief is that first base defense matters. As far as scoop data, I think it would be interesting to see the speed of throws, spin of bounce, distance from bag, that sort of thing, and then be able to compare similar throws with how other first baseman picked those, before having all that scoop data interpreted or rolled into another stat category. I think Mauer was one of the best, but maybe most good first baseman are pretty close. Don't know. I think moving Sano to first base is now under real consideration; he had throwing problems in the minors and to correct that I think he was instructed to throw low. And he throws hard. Mauer could pick his throws better than Morrison could. I think scooping throws is both an underappreciated skill but also something a first baseman is never charged an error for failing to do.