Another day, another NL East team solves their center field problem. Yesterday, the Braves spent $75 million to sign B.J. Upton to a contract that is perfectly fair and should provide them with a quality player going forward. Today, the Nationals spent $21 million — and, to be fair, a solid pitching prospect — and got a similarly valuable player in Denard Span. Advantage, Nationals.
Similarly valuable doesn’t mean similar, of course. The similarities between Span and Upton pretty much end after you note that they’re both athletic center fielders. Upton derives a lot of value from hitting for power, while Span has hit nine home runs in the last three years combined. Span derives most of his value from making contact and running, using his speed to help him get on base, score runs, and save them in the outfield. And yet, at the end of the day, they end up with results that are about equally effective at winning games.
For his career, Upton has a 107 wRC+ while Span checks in at 105. Interestingly, both players produced a wRC+ in 2012 that was an exact match for their own career average. Span struggled a bit the previous couple of years — and his issues were compounded with a mid-summer concussion that ended up costing him about half of the 2011 — but he rebounded nicely last year and showed some of the production that made him such a dynamic player earlier in his career.
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