 During the 2004 regular season Keith Foulke was used primarily as a closer in the conventional model; however, Foulke's usage in the 2004 postseason was along the lines of a relief ace with multiple inning appearances at pivotal times of the game.Houston Astros manager Phil Garner also employed a relief ace model with his use of Brad Lidge in the 2004 postseason.During his tenure with the Red Sox, James published several new sabermetric books (see #Bibliography below).