Post-Career
After his playing career, Jack managed minor league teams for the Chicago Cubs organization, including the GCL Cubs (1975), the Pompano Beach Cubs (1976–1978), and the Wichita Aeros (1979–1980). Under the California Angels farm system he managed the Holyoke Millers in 1982. With the Houston Astros, he managed the Columbus Astros in 1983. The final managerial position he took in the minors was with the San Francisco Giants farm team, the Pocatello Giants in 1988. Over the course of his minor league managerial career Jack amassed a 501–599 record with only 3 winning seasons.
Hiatt was the Giants' director of player development for 16 seasons, before his retirement in October 2007.
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