In the offseason, an unstoppable force collided with an immovable object as sabermetric whipping boy Dayton Moore of the Royals and sabermetric whipping boy Brian Sabean of the Giants completed a trade, sending Melky Cabrera to the Giants and Jonathan Sanchez to the Royals. The general feeling at the time seemed to be that Moore had done well for himself, for once, by getting something out of what appeared to be a fluky-good year by Cabrera, while Sabean had been duped yet again.
Flash forward to May 15, and Sanchez has a 6.75 ERA, while walking nearly a batter per inning and averaging just over four innings pitched per start. Cabrera, meanwhile, has thus far bested his own surprisingly strong 2011 performance, and currently sits at .338/.386/.490 (150 OPS+) and is on pace to wind up with about 6.5 rWAR. Melky’s been so impressive, in fact, that yesterday, Sabean discussed the possibility of signing him to an extension during the season.
It’s easy to see where Sabean is coming from. Melky’s still just 27 (an infant, by Sabean’s standards), and is set to become a free agent for the first time after this season. With Pablo Sandoval out of the lineup, Cabrera has been far and away the Giants’ best hitter. Also, Sabean let Carlos Beltran walk at the end of last year, and has seen him ink a better-than-team-friendly deal with the Cardinals and spend the first 35 games of 2012 as probably the NL’s best hitter (non-Matt Kemp division). Locking up Beltran’s good, younger replacement might be a popular move with the fans right now.
But: prior to 2011, Cabrera spent five full seasons as a below-average hitter, and he was young and all, but he’d shown the opposite of improvement, posting the following rWARs from age 21 through 25: 2.7, 1.3, 0.2, 0.9, (-0.5). By the end of 2010, Cabrera looked like a guy who, come 2013, would probably sign one or two one-year, quite possibly minor-league deals and then fade away. How comfortable can we be that he’s really significantly improved, and isn’t just having a fluky year-plus-a-month-or-so? Read the rest of this entry »





