Remember when Doug Mientkiewicz was really good at first base for the Twins one year, but Rafael Palmiero won the Gold Glove despite barely playing the position that year? Defensive analysis and Gold Glove voting have come a long way since then. Whether we agree with each of them, there are now at least several statistical data to measure defense.
SABR Defensive Index is one of those data points and it is used to help select the Rawlings Gold Glove Award ®. According to their site, “The SABR Defensive Index accounts for approximately 25 percent of the Rawlings Gold Glove Award selection process that was added to the votes from the managers and coaches.”
A perfect system? No. But a better system? Probably.