Correction: I thought the Dodger Insider post I linked to was written by Jon Weisman. I’m still not used to thinking of that site as a multi-author blog. It was actually written by Cary Osborne. I’m sorry for the misattribution!
Mr. Weisman’s Cary Osborne’s calculations, the moves the Dodgers made during the off-season have made them the most improved team in the West in terms of Defensive Runs Saved.
Huh? What’s that number, you ask? Defensive Runs Saved is an attempt to determine the value of a player against other players of the same position. As Joe Posnanski put it at his blog: “the number determines (using film study and computer comparisons) how many more or fewer successful plays a defensive player will make than league average.”
Here’s the full-on explanation from its creators at The Fielding Bible, if you’re interested. It’s lengthy.
Jon Cary says
Gone from the Dodgers are Matt Kemp, Hanley Ramirez and Dee Gordon, who combined for -37 DRS. In are Howie Kendrick, and Jimmy Rollins and what appears to be either Joc Pederson or Andre Ethier. Since there isn’t enough Major League statistical data on Pederson, we’re going to slot Ethier into the replacement for Kemp. Rollins, Kendrick and Ethier combined for six DRS. That’s a swing of +43 DRS.
He’s got the other NL West teams’ DRS data, and he comes up with the startling fact that the Dodgers are the only team in the division whose changes over the winter give it a net positive number.