Yankees Have Most Improved Shortstop WAR in Baseball: The New York Yankees have the Majors' biggest projected improvement in wins above replacement (WAR) at shortstop this season -- according to Fangraphs -- and it's all because Derek Jeter retired. Neil Paine of 538 notes, "[T]he Yankees had the least-productive shortstop situation in all of baseball last year, so even a shortstop depth chart headlined by Didi Gregorius was bound to be one of the game's most improved in 2015." There are some other gems in the stats. The Texas Rangers have a +3.7 at first base because they've replaced Prince Fielder ... with Prince Fielder.