When the Phillies won the World Series in 2008, Pat Gallic received a lot of credit for assembling the team as a general manager. Some of this is surely deserved as he was able to acquire the complementary pieces the team needed to improve from an also-ran to a perennial World Series contender- players like Jayson Werth, Jamie Moyer, Joe Blanton, Brad Lidge, and Shane Victorino.
But Gillick's moves would have been nothing had there not been a core of players for him to fill in around. None of the top 3 players in bWAR on that 2008 World Championship team was acquired by Pat Gillick.