Unlike the Braves, the Phillies already had to make a lot of decisions regarding who was worthy of the playoff roster given that they had to play in the wild card round last weekend. There is some merit to the idea that roster composition for a three game series could, in theory, be different from the roster decisions for a five game series.
Phillies manager Rob Thomson did provide a little bit of insight into some of the decisions that could be relevant for the NLDS roster including which starters were on the roster just to plan for a potential three-game series against the Cardinals.