One of the impressive things about the Pittsburgh Pirates has been their ability to trade quality relievers for other pieces of their team, and yet still manage to put together a strong bullpen. I pointed out how strong their bullpen was today in the 2013 bullpen recap, and that was after trading Joel Hanrahan, Brad Lincoln, and Chris Resop in the last year.

Looking at the 2013 roster, several players were acquired in exchange for relief pitchers.

Travis Snider - Was acquired at the 2012 trade deadline for Brad Lincoln.

Marlon Byrd/John Buck - To get these two, the Pirates traded two prospects, one of which was relief pitching prospect Vic Black.

Josh Harrison - He was part of a deal in 2009 that sent away Tom Gorzelanny and John Grabow.

Justin Morneau - Like Byrd, he was ac...

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