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The more interesting aspect of the analysis is the tacit acknowledgement of UZR's failure. By UZR, the M's are the worst defense in the majors. By DER, they are quite good. Once it is appreciated that the M's pitchers give up a lot of line drives the defense looks even better. The UZR apologists make arguments about the instability of UZR until you have as much as 3 years of data. Three years to be stable and you want me to see value in the statistic!?!
All of this will be validation to Sandy and Ghost who have pushed team defensive stats.