Necessary Roster Move #1 went through tonight with the team announcing that Steven Jackson is being designated for assignment to make room for Brandon Jones on the 40-man roster. This isn't really the move people were expecting, but it's interesting on a few levels.

First off, dropping Jackson says to me that it's pretty likely the Pirates are expecting Octavio Dotel to sign in the near future. It's also telling that Jackson got the axe and not Chris Jakubauskas or Anthony Claggett. Maybe the Pirates thought Jackson was more likely to clear waivers, or maybe they're honestly more interested in trying Claggett/Jakubauskas out for a role in the 2010 bullpen.

Second, don't assume that it means that Brandon Moss or Steve Pearce or Neil Walker or even Brandon Jones are safe. When Dotel does...

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