Reflecting on Robert Saleh's time with the San Francisco 49ers, Jacksonville Jaguars' Arik Armstead explains what made him an effective coach

Saleh, who was fired in October as the New York Jets head coach five games into his fourth season, generated interest on the head-coaching front and was seen as one of the frontrunners for the Jacksonville Jaguars job. He also interviewed with the Las Vegas Raiders and Dallas Cowboys.

Robert Saleh cannot personally create turnovers, rush the passer or stop the run. His return as the 49ers’ D-coordinator is no guarantee of success.

The San Francisco 49ers have long established their strong defensive identity, and with Robert Saleh back at the helm

Later on Thursday, then-Tampa Bay Buccaneers offensive coordinator Liam Coen had a change of heart, the Jacksonville Jaguars quickly moved to hire him as head coach and Saleh, who told Kyle Shanahan and John Lynch that he’d return to the 49ers if he didn’t get a head-coaching job, stayed true to his promise.

Tony Pauline says he has spoken to 49ers assistant coaches at the Shrine Bowl practices about these upcoming changes.

Former New York Jets head coach Robert Saleh has agreed to terms with the San Francisco 49ers to become the team's defensive coordinator, NFL Network Insider Tom Pelissero reported on Friday.