AP

The 49ers are in the market for a new head coach and their list of candidates will reportedly include a pair of defensive coordinators who they have seen quite a bit of in the last two years.

Josina Anderson of ESPN reports that the 49ers have requested permission to interview Cardinals defensive coordinator Todd Bowles and Seahawks defensive coordinator Dan Quinn. Both men moved into their current positions before the 2013 season, so the 49ers have faced them multiple times over the last two years.

Both coordinators are expected to be popular candidates around the league after building defenses that have been among the league’s best over the last two seasons. If the interviews do get scheduled, Quinn would be available to speak to the 49ers this week because the Seahawks have a bye in the first round of the playoffs while Bowles will have to wait until after Arizona faces the Panthers this weekend.

The 49ers have also reportedly asked for permission to speak with Broncos offensive coordinator Adam Gase, which suggests they aren’t locked into a coach from one side of the ball as they look for Jim Harbaugh’s successor.