Saleh's departure ignites a familiar offseason quest. Who will revitalize the 49ers' defense and preserve Super Bowl aspirations after this crucial coordinator change?
The San Francisco 49ers’ reunion with Robert Saleh turned out to be brief. After returning to Santa Clara this season to stabilize a defense ravaged by injuries, Saleh has once again moved on, this time to become the head coach of the Tennessee Titans. His departure leaves the 49ers searching for their fifth defensive coordinator in five seasons, continuing a trend that has tested continuity on that side of the ball.
Saleh’s return in 2025 came after a stint as head coach of the New York Jets, where he went 20–36 and never won more than seven games in a season. While his time in New York was marred by quarterback instability, organizational dysfunction, and questionable messaging, Saleh’s defensive acumen was never in doubt. Back in San Francisco, he quickly reminded the league why he was once one of the most sought after coordinators in football.
Despite losing multiple defensive stars to injury, the 49ers showed improved structure, effort, and discipline under Saleh. That rehabilitation of his coaching reputation proved enough for Tennessee to hand him a second chance as a head coach, pivoting late in the hiring process and naming Saleh their new leader instead of pursuing an offensive minded hire.
For the Titans, Saleh’s success will likely hinge on his ability to assemble the right offensive staff. For the 49ers, however, his departure creates a familiar offseason challenge: replacing a coordinator whose presence has drastically elevated the defense.
San Francisco has always looked dominant defensively with Saleh in the building and noticeably less consistent without him. Getting this hire right will be critical to the team’s Super Bowl aspirations.
Who Could Be the 49ers’ Next Defensive Coordinator?
While the job may appear demanding due to turnover, it is one of the most attractive coordinator roles. The 49ers are coming off another playoff run and expect key defensive stars like Nick Bosa and Fred Warner to return healthy, along with first-round pick Mykel Williams. That combination of talent and opportunity could make this search smoother than in past years.
Gus Bradley, the team’s assistant head coach and Saleh’s longtime mentor, is the most obvious internal candidate. Bradley brought experience, leadership, and red-zone emphasis to the defense this season and earned praise from players for his energy and knowledge. While his promotion might seem logical, it’s not guaranteed and there’s even the possibility he follows Saleh to Tennessee.
Another internal option is Daniel Bullocks, the 49ers’ defensive passing game specialist. Bullocks has been with Kyle Shanahan for nearly a decade and interviewed for the job previously. His familiarity with the system and the players could offer continuity if the team prefers an in-house promotion.
Externally, Raheem Morris stands out as a strong candidate. A former Super Bowl winning defensive coordinator and head coach, Morris has deep ties to Shanahan and has long been admired within the organization. His experience and adaptability could make him an immediate stabilizer.
What Comes Next
Saleh’s exit is another reminder of the cost of success in today’s NFL. Strong coordinators rarely stay long. The challenge for the 49ers is finding a replacement who can maintain consistency while adapting to a roster that’s both star-studded and increasingly young.
The good news? This time, San Francisco isn’t scrambling. With talent returning, depth developing, and multiple viable candidates available, the 49ers have a chance to make a hire that keeps their championship window wide open.