Despite just hiring Jim Caldwell on Tuesday, the Detroit Lions have already filled out much of their coaching staff. A limited number of jobs remain open, including the roles of offensive coordinator and quarterbacks coach.

On Friday, the Lions may have taken a step toward filling one or both of those jobs. They brought in former Tennessee Titans offensive coordinator and quarterbacks coach Dowell Loggains for an interview, according to ESPN's Chris Mortensen (via MLive). It's not clear which open job he interviewed for, but it's a safe bet that it was quarterbacks coach or offensive coordinator, if not both.

Loggains was actually originally supposed to interview with the Lions when Mike Munchak met with the team about their vacant head coaching job. Because Munchak's interview was moved up, Loggains was unavailable since he was busy speaking with the New York Giants about their vacant offensive coordinator job, which has since been filled.

Loggains became the Titans' offensive coordinator toward the end of the 2012 season, and he held that position for all of 2013. Before taking that role, he was the quarterbacks/passing game coach from 2010-12 and an offensive quality control coach from 2008-09. Loggains, who is only 33 years old, played quarterback at Arkansas before entering the coaching world.

UPDATE: Albert Breer reports that Loggains interviewed for the Lions' quarterbacks coach job.