The 49ers and Jets both enjoyed top-five defenses under Saleh. There’s little reason to expect Saleh to stray away from what’s made his defenses elite. There also may not be m

Wilks, who replaces Jeff Ulbrich as the Jets’ defensive coordinator, also has head coaching experience. He was Arizona’s coach in 2018 and was fired after the Cardinals finished 3-13. Wilks also was Carolina’s interim coach when he replaced the fired Matt Rhule in 2022 and went 6-6 with the Panthers.

Glenn was hired as the next head coach of the Jets earlier this month after a four-year run as the Detroit Lions’ defensive coordinator. The Jets fired head coach Robert Saleh in the middle of last season. Glenn said earlier this week that he will not call defensive plays, so that will presumably fall to Wilks.

Robert Saleh, who was fired by the Jets during the season, was hired by the 49ers for second stint as the team’s defensive coordinator on Friday night.

NFL Network’s Tom Pelissero reported that the 49ers interviewed former Green Bay Packers linebackers coach and new Jacksonville Jaguars defensive coordinator Anthony Campanile

The biggest concern surrounding the San Francisco 49ers' reunion with Robert Saleh is the possibility of him becoming the team's third consecutive one-and-done defensive coordinator.