Dave Trembley joined the Astros after being named third base coach on Oct. 19, 2012. Trembley spent the previous 28 years in professional baseball, which includes 20 combined seasons as a minor league manager. From 2007-10, Trembley served as the manager of the Baltimore Orioles, where he helped oversee the development of players such as Adam Jones, Matt Wieters and Nick Markakis. He has also served as a coach, coordinator and scout in his career, and most recently served as minor league field coordinator for the Atlanta Braves from 2011-12. During his career as a minor league manager, Trembley won two league titles and earned his respective league's Manager of the Year honor three times (1987, 1995, 1999). He was named the Minor League Manager of the Year in 1987 by Baseball America in what was his first season as a manager in professional baseball. In December 2001, Baseball America selected him as one of minor league baseball's top five managers of the previous 20 years. His illustrious career as a minor league manager has included stints in the Pirates (1987-89), Padres (1991- 93), Cubs (1995-2002) and Orioles (2003-06) organizations. Trembley's one season in a front office role came in 1990 when he served as director of day-to-day operations for the Pirates minor league complex and spring training facility in Bradenton, FL. In 1989, Trembley served as manager of the Eastern League All-Star team on its "Diamond Diplomacy" tour of the Soviet Union. Trembley managed Astros manager Bo Porter at three different levels in the Chicago Cubs organization from 1995-98, and also served as a coach in the inaugural Futures Game in 1999. In 2003, he received Baltimore's Cal Ripken Sr. Player Development Award after guiding Double A Bowie to a 13 ½ game improvement from the previous season. He was inducted into the Florida State League Hall of Fame in 2012. Prior to his professional baseball coaching career, Trembley spent three seasons (1977-79) as a teacher and baseball coach at Daniel Murphy High School in Los Angeles and then five seasons (1980-84) as head coach at Antelope Valley Junior College. In 2009, he was inducted into the Antelope Valley Junior College Hall of Fame.
Trembley earned his bachelor's degree in physical education and master's degree in education from the State University of New York at Brockport. He has also done graduate work in sports psychology at Penn State University. He resides in Daytona Beach, FL, with his wife Patti and son Kevin.