Donald Edward Baylor (born June 28, 1949) is a Major League Baseball coach currently the hitting coach for the Arizona Diamondbacks, and a former player and manager. During his 19-year playing career, he was a power hitter who played as a first baseman, outfielder, and designated hitter. He played for six different American League teams, primarily the Baltimore Orioles and California Angels. He later managed the expansion Colorado Rockies for six years and the Chicago Cubs for three.