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February 26, 2013

Overthinking It

PECOTA's Projected Fallers

by Ben Lindbergh

Yesterday we looked at five position players and five pitchers whom BP’s projection system, PECOTA, believes are in for big improvements in 2013. Today we’ll tackle PECOTA’s picks to suffer some of the largest declines.

Hitters
Mike Trout, Angels
2012 WARP (639 PA): 9.1
Projected 2013 WARP (693 PA): 5.3
Projected WARP decrease: -3.8
Trout is projected to see the largest WARP decrease of any player—and to tie for the fifth-highest WARP among non-pitchers. It’s a reminder of how far ahead of the pack he was in 2012 that PECOTA can project him to be much less valuable than last year, but still more valuable than almost everyone else. Although he fits the profile of a high-BABIP hitter, Trout was likely a little lucky on balls in play—his batting average on line drives was over 40 points above league average. Some regression in that area, coupled with the adjustments made by opponents who’ve spent the winter searching for ways to get him out, might make Trout merely one of the most valuable players in baseball instead of the most valuable by far.

Melky Cabrera, Blue Jays
2012 WARP (501 PA): 5.1
Projected 2013 WARP (551 PA): 1.4
Projected WARP decrease: -3.7
It doesn’t take any knowledge of Cabrera’s PED use to predict that he won’t sustain his success from last season: the stats alone say he’s in for a fall. Cabrera’s walk and strikeout rates in 2012 were virtually identical to his career rates, and his power output (as measured by ISO) was almost the same as it had been the season before. The difference was that Cabrera’s batted balls fell in for singles roughly one every four at-bats instead of one every five. If you believe Cabrera’s career year was produced in part by PEDs, you can adjust his projection accordingly, but his long-term track record and anomalous BABIP alone suggest that he’s unlikely to be much better than average.

Alex Rios, White Sox
2012 WARP (640 PA): 4.6
Projected 2013 WARP 594 (PA): 1.5
Projected WARP decrease: -3.1
It’s hard to know what to make of Rios; the mercurial outfielder has alternated between well above average and just above or below replacement level for the past five seasons. Last year was his best offensive season since 2007, as he compensated for a career-low walk rate—only five other qualified hitters walked less frequently—with increased power and better luck on balls in play. PECOTA projects him to split the difference between Good Rios and Bad Rios in his age-32 season, though the system might be underestimating him if his renaissance owed anything to the time he spent perfecting his stance before last season.

If there’s any player who rivals Rios in his swings between star- and scrub-level stats, it’s Aaron Hill, who signed a three-year extension with Arizona this offseason. PECOTA expects him to decline by 3.4 WARP, even more than Rios, but that still leaves him projected for an above-average .262 TAv and 2.5 WARP with 19 homers and 12 steals, which would make him a valuable commodity at second base for the Diamondbacks and fantasy owners alike. Plus, PECOTA doesn't know about the adjustments he made.

Adam LaRoche, Nationals
2012 WARP (647 PA): 3.6
Projected 2013 WARP (594 PA): 1.5
Projected WARP decrease: -2.1
LaRoche’s lifetime stats paint a perfect picture of a league-average first baseman. He’s been better than that in some seasons, including his stellar 2012, but career years at age 32 are rarely repeated. LaRoche’s clubhouse leadership might make him more valuable to the Nationals, but not to your fantasy team.

A.J. Pierzynski, Rangers
2012 WARP (520 PA): 2.5
Projected 2013 WARP (520 PA): 0.4
Projected WARP decrease: -2.1
No other player has slugged .500 and hit 25 homers for the first time as late in his career as Pierzynski did last season. We’d expect some regression from any player coming off a season so out of line with his previous performance, but it’s especially hard to foresee more of the same from a 36-year-old catcher. Pierzynski brings durability and defense to Texas, but he’s averaged just under 13 homers per season since he became a starter. PECOTA thinks he’ll manage only 11 this year, despite a more power-friendly park.