Could the San Francisco 49ers bolster their defense around new coordinator Robert Saleh thanks to his New York Jets ties?

Robert Saleh is expected to return to the 49ers as their defensive coordinator if he doesn't become a head coach according to The Athletic and NBC Sports Bay Area.

Robert Saleh is heading back to San Francisco. Saleh and the San Francisco 49ers have agreed to a contract for him to return as the team's

Robert Saleh is set to take one of his former jobs, as he will become the San Francisco 49ers' defensive coordinator, The Athletic reported on Thursday. Saleh served as the New York Jets' head coach for three-plus seasons before he was fired in October after the team started 2-3.

Saleh had interviewed for three head coaching positions but had committed to head coach Kyle Shanahan and general manager John Lynch that, should be not get another head coaching job, he would return to San Francisco as defensive coordinator,

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.