Sportvision's new tool is FIELDf/x, which should open up the fielding toolbox in the same way that PITCHf/x created a deeper understanding of pitching. Instead of simply measuring a player's output (e.g., where he caught the ball), FIELDf/x should allow for a more accurate measure of a player's fielding process. Who gets the best jumps on fly balls? Which team does the best job of defensive positioning, getting its players in the right place to make plays before a ball's even hit? What's the optimal shift to employ against a particular slugger? FIELDf/x won't provide all the answers, but if the data compiled by the project gets released to the public, it will bring researchers much closer to them.