Defensive metrics, the Mariners, and Kevin Kouzmanoff

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Vastly improved defense has played a huge role in the Mariners going from 101 losses last season to above .500 this year, and Gary Armida of wrote an interesting article about how first-year general manager Jack Zduriencik and his sabermetrically inclined front office went about making those changes with the help of advanced defensive metrics.
Here’s a quote from special assistant to the GM (and SABR member) Tony Blengino:
The statistics add another level. It shouldn’t be scouting against numbers. Successful organizations have to find a way to blend the two. It’s our responsibility to blend the two. … Our own [statistics] are easily adjustable measures as they build in nature of our pitching staff and our defensive positioning. There’s a margin for error with positioning with many of the public metrics. If you over-shift quite a bit, the shortstop may have skewed out of zone ratings. … To properly evaluate teams have to know the context of how those numbers are generated. So, we use our own metrics to account for that.
There’s plenty of other interesting stuff in the article, so definitely read the whole thing, but the gist is that the Mariners are among quite a few teams that are actively trying to quantify things that until recently have been based on eyes and scouting reports. Perhaps the most popular of the publicly available defensive metrics is Ultimate Zone Rating, and the Mariners have gone from 20th in UZR last season at -20.9 runs to second-best in UZR this year at +52.1 runs.
Of course, not everyone is aware of or interested in new approaches to evaluating defense. For instance, San Diego Union Tribune columnist Tim Sullivan wrote a lengthy piece today arguing for Kevin Kouzmanoff of the Padres as a Gold Glover based on his low error count at third base, writing that “statistically Kouzmanoff’s glovework has been of 24-karat quality this season” because “he owns the highest fielding percentage at his position in either league and has committed only three errors in 121 games.”
Sullivan goes on to make comparisons between Kouzmanoff and two-time Gold Glover David Wright based on errors, fielding percentages, and total chances, but merely gives passing mention to “the new-age calculation called zone rating” and “many arcane statistics being floated now.” There’s plenty of similar “analysis” being done in newspapers across the country, but the funny thing is that you’d be hard-pressed to find many MLB teams focusing on the same old stuff that so many writers are still hooked on.
Kouzmanoff’s own team employs former stat-head posterboy (and current blogger) Paul DePodesta as a special assistant and you can be absolutely certain that the Padres’ front office isn’t doing any meaningful evaluations based on fielding percentages. Low error totals could mean that a third baseman is sure-handed with excellent range, but they could also mean that a third baseman is sure-handed with mediocre range or even sure-handed with terrible range.
Guys like Ozzie Smith, Willie Mays, and Brooks Robinson aren’t considered all-time great defenders because they committed a low number of errors, they’re considered all-time great defenders because they made plays that other fielders simply couldn’t. As for Kouzmanoff … well, he’s a solid defensive third baseman according to UZR, rating 3.2 runs above average this season and 2.7 runs above average last season, but a Gold Glover he’s not.
Ryan Zimmerman of the Nationals likely deserves that honor in the National League this season, rating 16.5 runs above average according to UZR and also drawing plenty of positive reviews on his glove from people relying on their eyes. Of course, he’s made 13 errors compared to only three for Kouzmanoff, and despite the fact that more data and information is available for meaningful defensive analysis now than ever before there are still an awful lot of people who misguidedly equate errors with defense.

Marlins have begun extension talks with Dee Gordon

Dee Gordon
AP Photo/Alex Brandon

Barry Jackson of the Miami Herald wrote three weeks ago that the Marlins were probably going to explore an extension this winter with second baseman Dee Gordon. And it sounds like those talks are underway.

Via beat writer Joe Frisaro of

As a guest on MLB Network’s “Hot Stove” show Wednesday morning, Gordon confirmed his camp has been in talks with the Marlins regarding a multiyear deal. A source told that the discussions are preliminary and have just recently started.

“My agent is doing the talking,” Gordon said on the show. “They’re just keeping me in the loop. I think it’s going pretty well right now. We’ll see how that goes. I’m just playing the waiting game. We’re going to do the right thing.”

The 27-year-old carries three more seasons of salary arbitration, so there’s no real rush to get something done before next spring. Gordon carries quite a bit of leverage after posting a career-best .333/.359/.418 slash line in 145 games this past season for the Fish. He led all major leaguers in hits (205) and stolen bases (58).

Braves sign Bud Norris to one-year contract

Bud Norris

Bud Norris has found a home for his attempt at a bounceback season, signing a one-year deal with the Braves. Jon Heyman of says it’s worth $2.5 million, which is a huge cut from his $8.8 million salary this year.

Norris had established himself as a solid mid-rotation starter from 2009-2014, but had a brutal 2015 season split between the Orioles and Padres with a 6.72 ERA in 83 innings and a late-season move to the bullpen.

In announcing the signing the Braves referred to Norris as a starting pitcher, so joining the rotation for a rebuilding team gives him a chance to get his career back on track with an eye on hitting the open market as a free agent again next offseason. And if he fares well, the Braves could use him to add a prospect or two at the trade deadline.

The Cubs acquire Rex Brothers from the Rockies

Rex Brothers Rockies

The number of people who, if you held a gun to their head, would say that “Rex Brothers” was a game show host and/or local TV news personality from the late 1970s or early 80s is not insignificant. But if you’re a Rockies fan or if spend all day thinking about baseball you know that he’s a reliever who has played in Colorado for the past five years. Now you know him as a reliever for the Cubs:

Brothers — a former Best Shape of His Life All-Star — was pretty good until he hit a brick wall in 2014 and spent most of 2015 in Triple-A. He had something of a bounceback after being called up when rosters expanded in September, but that’s not the sort of thing to excite anyone. He could be useful for the Cubs or just spring training cannon fodder and organizational depth.

Cabrera just turned 18 a couple of weeks ago and pitched a grand total of 14 games in the Dominican Summer League. He’s young and was a $250,000 signee from the Dominican as a 16-year-old so, by definition, he’s a project. Worth giving up Rex Brothers for him if you’re the Rockies, worth risking for some depth in the pen if you’re the Cubs.

Diamondbacks hire Dave Magadan as hitting coach

Dave Magadan Rangers
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Steve Gilbert of reports that the Diamondbacks’ new hitting coach is Dave Magadan, who “parted ways” with the Rangers last month after three years filling the same role in Texas.

Magadan also previously was the Red Sox’s hitting coach and his teams have generally done pretty well, including the Rangers scoring the third-most runs in the league this year.

He’ll have plenty of talent to work with in Arizona, as the Diamondbacks scored the second-most runs in the league led by Paul Goldschmidt, A.J. Pollock, and David Peralta. Turner Ward, who had been Arizona’s hitting coach, chose to leave the team two weeks ago.