Education
Hacker attended Southern Illinois University.
Hacker attended Southern Illinois University.
Hacker played for the Montreal Expos in the 1971 season as a Shortstop. He played in 16 games in his one-year career. He had a.121 batting average, with four hits in 33 at-bats.
Hacker was a base coach in the Major Leagues from 1986 to 1993, coaching for the Saint Louis Cardinals from 1986-1990 and the Toronto Blue Jays from 1991-1993.
Hacker coached first base for the Cardinals from 1986-1987 and third base from 1988-1990. He was the third base coach for the Blue Jays from 1991-1993.
He coached in two World Series (1987 and 1992) and was on the Blue Jays bench for a third (1993). He also coached in the 1988 Major League Baseball All-Star Game.
His Major League coaching career was ended by a car accident suffered on the Martin Luther King bridge in Saint Louis in July 1993.
He was replaced as third base coach by Nick Leyva.
During his recovery from injury he remained a member of the Blue Jays coaching staff, but was transferred to off-field work such as creating hitting charts of opposing teams.