Between 1988 and 1991, Williams played running back at William & Mary, where he was a teammate of future Pittsburgh Steelers head coach Mike Tomlin and future Buffalo Bills head coach Sean McDermott.
With the Colts, Williams won Super Bowl XLI against the Chicago Bears.
[5] In February 2018, Williams returned to the Indianapolis Colts as the defensive backs/safeties coach.
[6] On February 2, 2022, Williams became the defensive coordinator for the Chicago Bears, following newly appointed head coach Matt Eberflus from the Indianapolis Colts.
[7] On September 20, 2023, Williams resigned, citing health and family concerns.