Duane Grant Espy
- Bats Right, Throws Right
- Height 6' 0", Weight 210 lb.
- High School Santa Monica High School
After his playing career ended, he managed in the minors for the Brewers from 1979 to 1982.
Joining the San Francisco Giants, he managed the Shreveport Captains (1983-1985) and coached the Phoenix Firebirds (1986-1987). Espy managed in the Giants' farm system from 1988 to 1991, and was the team's minor league hitting coordinator in 1992. He was later a coach at Phoenix again before leaving the organization.
From 2000 to 2002, he was the San Diego Padres hitting coach, and from 2003 to 2006, Espy held the same job for the Colorado Rockies. In 2007, Espy was a coach for the Casper Rockies and in 2008-2010 he moved up to the Modesto Nuts. In 2013 the Rockies added a "development supervisor" position for each of its minor league affiliates. Espy was tabbed for the Tulsa Drillers in that role. In 2015, he was named the organization's minor league hitting instructor. In 2017, he began a second stint as hitting coach of the Rockies, but was let go after the 2018, when the Rockies posted the lowest batting average in franchise history - but still managed to make the postseason for the second straight year.