During the Kyle Shanahan era, the San Francisco 49ers have had two one-and-done defensive coordinators. Robert Saleh is grateful he’s not one of those defensive coordinators. The 49ers' defensive coordinator is grateful he didn’t suffer the same fate as Steve Wilks and Nick Sorensen: the 49ers ran out of patience.

Robert Saleh is back in San Francisco as the defensive coordinator, the role he gave up when he left for New York.

Robert Saleh once again is tasked with reviving the San Francisco defense following a rough season when the Niners struggled to slow down opposing offenses. The main difference this time when Saleh returns for a second stint as Niners defensive coordinator following an unsuccessful run as head coach of the New York Jets is the talent that he inherits.