I think it is a stretch to believe that they will turn over half the roster within 1/2 year. Here is my take: I agree that many of the relievers will be on a short leash (Boyer, Stauffer, Duensing and Graham). If they don't perform early they may be released (or in Graham's case either sent back to Atlanta or traded and sent down). Outfield: Only Rosario or Hicks will be up before September. Buxton will probably be a 9/1 call up. Infield: The only change will be Pinto until September. Starting Rotation: In my mind, Hughes, Santana and Nolasco are untradeable due to the lengths of their contracts. Gibson has the potential to be a top end starter if he gets some more consistency. So that leaves Milone as the only tradeable asset to make room for May.