Williams, 53, managed in the majors for two years in 2014-15 with the Nationals, leading them to an aggregate 179-145 (.522) record. They made the playoffs in 2014, getting shooed out of the NLDS three games to one by the Giants.
Williams also coached the Diamondbacks from 2010-13 and in ’16, and was with the Athletics as a third base coach for the last two seasons.
The A’s could lose two other coaches along with Williams. Bench coach Ryan Christenson will reportedly interview for the Pirates’ vacant managerial position while quality control coach Mark Kotsay will do the same with the Giants.