The Flower Mound junior should return well before the beginning of the 2019-20 season.
The Lady Bears become just the third program to win three championships in women's basketball history.
The Red Raiders will try to become the first Texas team since 1966 to win the men's basketball championship.
Williams returns to Texas A&M, where he previously served as an assistant coach under Billy Gillespie.
Baylor guard Makai Mason dropped the first 40-point conference game in Bears history to lead the Bears over the Horned Frogs.
Baylor basketball dipped down to the mid-major level to find an inbounds play against Texas Tech's elite defense.