Could it work? Sure. But would you bet on it working? Or would you rather try to add some more TB* and TOB? We already did it at first base and catcher, where the aforementioned improvements by Carlos Ruiz and Ryan Howard would trump any available on the free agent market. We can't realistically do it at second base or left field, where Chase Utley and Dom Brown are coming off pretty darn good seasons. I don't think we can realistically do it at third base, because Cody Asche is an unknown at this point. Like Asche, Jimmy Rollins is a huge wild card. If you are comfortable betting on a bounce back year from him, that's fine. But if I was a general manager, I would be all about risk minimization at this time of year. And one way to guard against struggles by Asche or Rollins, or something less than the aforementioned improvements out of Howard or Ruiz, or a sophomore slump by Dom Brown, or an injury to Chase Utley (or to anybody, for that matter) is to add more offense at another position. And the only position where they can realistically add more offense, given their current personnel and the personnel available on the free agent market, is center field.