kab21 wrote:Using xFIP as an argument against Soriano is silly. Over his career his ERA has been an entire run better than his xFIP. This is not unusual for RP'ers but I've never understood why. However it does mean that xFIP is not a good predictor for him.
Right, but other RPs also have that benefit. Another benefit of looking at xFIP/SIERA is that they stabilize much faster than ERA. Of course at this point there's not much else left to help their team. If they had this cash the whole time they had the entire offseason to find a better way to use it. Like adding all of Uehara, Adams and keeping Burnett whose combined 2013 salaries are the same as Soriano's. Or any other combination of moves that makes them significantly better than just adding Soriano. Uehara alone is probably more valuable than Soriano for this season.