You might recall last December that the Pac-12 got raided hard by other conferences looking for new coaches.
In a few short weeks, the league said goodbye to: ASU offensive coordinator Mike Norvell (Memphis), Oregon offensive coordinator Scott Frost (UCF), Oregon State defensive coordinator Kalani Sitake (BYU), and Washington defensive line coach and special-teams coordinator Jeff Choate (Montana State).
Plus, USC offensive coordinator Clay Helton was officially elevated to head coach, making it six coaches/coordinators to take head coaching positions between Thanksgiving and Christmas. The last coordinator to leave the conference was Derek Mason in 2014 (Vanderbilt), so the league was due for a good poaching.