>>7787128 (pb)

>Pientka moved to FBI SF Field Office

SF was Mueller's DOJ fiefdom before he became FBI Director.

Among his various other appointments, he served as U.S. attorney in two regions: the District of Massachusetts (Boston, 1986–87) and the Northern District of California (San Francisco, 1998–2001).

https://www.britannica.com/biography/Robert-Mueller