Over the winter there was a lot of talk about how the Pittsburgh Pirates were adding a lot of high beta players. The term first came up when David Todd described Francisco Liriano as a high beta player, pointing out that there were many possible outcomes for his 2013 season, ranging from very bad to very good. I wrote about how the Pirates had a roster full of those players, and how the 2013 season would depend on the success/failure rate of those guys. The article was a convenient "13 players in 2013" approach, and can be viewed here. Now that we're beyond the halfway point of the season, let's see how those players have performed. Keep in mind that this article was written in late December, so it didn't include anyone acquired after that point.

Starling Marte - I wrote that Marte need...

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