Marshall appeared in 410 MLB games over five seasons (1958–62) and batted .242 with 206 hits and 29 home runs. He recorded a career .994 fielding percentage, committing only nine errors in 1,602 total chances. He was part of the first interleague trade (without waivers) in baseball history when he was dealt by the Cubs with pitcherDave Hillman to the Boston Red Sox for first baseman Dick Gernert on November 21, 1959.
Marshall became a minor league manager in the Cubs' organization in 1968. After handling Triple-A assignments from 1971 to 1973, he was promoted by the Cubs to MLB third-base coach on the staff of Whitey Lockman for 1974.
On July 25, with Chicago at 41–52, he replaced Lockman as manager. The Cubs went 25–44 over the remainder of the season to finish at 66–96, sixth and last in the National League East Division. Marshall then led the Cubs to successive 75–87 seasons in 1975 and 1976, the Cubs finishing in fifth and then in fourth place. His contract was not renewed, and he was replaced by Herman Franks on November 24, 1976.[1]
He managed at Triple-A for the Montreal Expos and Oakland organizations in 1977–78 before landing his second MLB command with the 1979 Athletics. Marshall concluded his managerial career in minor league baseball during the 1980s, working for the New York Yankees (1984) and Chicago White Sox (1986). After his managerial career ended, Marshall scouted the United States for Japanese league teams. He remains in the game as the senior advisor for Pacific Rim operations of the Arizona Diamondbacks.[2]