|Dallas joined the Red Sox in 2003 as their first base coach after three years in a similar position with the Colorado Rockies. Williams began his professional coaching career in 1989 with Cleveland as a coach with Kinston in the Class A Carolina Lg. and as a roving outfield/base running instructor in 1990.
In 1991 he began a nine-year stretch with the Chicago White Sox organization. From 1991-95 he was a minor league roving outfield/base running coordinator and then became a minor league coach from 1996-99. He was the hitting coach at Bristol (VA), the White Sox Appalachian Rookie Lg. team, in 1998 and then had the same assignment at Winston-Salem in the Carolina Lg. In 1998 Winston-Salem led the league in home runs and was second in batting average.
Williams, an outfielder, was a first-round draft pick by Baltimore in 1976 (20th overall selection) and had a 12-year pro career. He reached the major leagues with Baltimore on September 19, 1981 and was also with Cincinnati in 1983, and played in 20 career games. Dallas earned all-star honors at AAA Indianapolis (Amer. Assoc.) in 1983 and 1987 when he led the league in batting both years while also leading in hits and outfield assists in 1983. Indianapolis won the Amer. Assoc. playoffs in 1986-87. In 1981 he led the International Lg. with 51 stolen bases.
Williams graduated from Abraham Lincoln H.S. in Brooklyn, NY where he was all-city three times in baseball and twice in basketball.