Ken Norton Jr., who was hired by the San Francisco 49ers as an assistant head coach last week, is expected to be named defensive coordinator of the Seattle Seahawks, sources told Mike Garafolo of NFL Network.

Norton will replace Kris Richards at the post, and will be tasked with developing a new slew of contributors to ease the expected declines of several aging stars.

Yes, Norton just recently took a job as Niners assistant HC/LBs. But he has an out in his deal to allow him to take the Seattle DC job, sources say. — Mike Garafolo (@MikeGarafolo) January 15, 2018

Norton worked as Seattle's linebackers coach from 2010-14 before moving to the Oakland Raiders as defensive coordinator. He was fired by the Raiders midway through the 2017 season.