 After batting only .234 in 1992 for the Charleston Rainbows of the Class A South Atlantic League, he batted .322 with 39 stolen bases in 1993 for the Waterloo Diamonds of the Class A Midwest League winning Minor League Player of the Year for the Padres organization.In winter baseball, he played in Australia, hitting .364 and winning the batting title and being named the league MVP.In 1994, Bush split his time between the Rancho Cucamonga Quakes of the Class A-Advanced California League, where he hit .335, and the Wichita Wranglers of the Class AA Texas League, where he hit .298.