after thinking about this a little bit i actually think that uzr does account for position, at least it should, since it separates of'ers by position. i'm not sure if they're isolating position for context or relying solely on park factors here, but whatever it is IT'S NOT WORKING GUYS. yes, UZR does account for position - so Matt Holliday fares well not necessarily even because he's a good fielder, but rather he's good compared to Ibanez, Bay, Willingham, etc. but then that's all accounted for in positional adjustment