The Tennessee Titans completed an interview with Detroit Lions defensive coordinator Aaron Glenn on Friday, their ninth completed interview to fill the vacancy left after firing former coach Mike Vrabel.

The Titans also have completed interviews with Cincinnati Bengals offensive coordinator Brian Callahan, Baltimore Ravens defensive coordinator Mike Macdonald, New York Giants offensive coordinator Mike Kafka, Dallas Cowboys defensive coordinator Dan Quinn, Carolina Panthers offensive coordinator Thomas Brown, Houston Texans offensive coordinator Bobby Slowik and Philadelphia Eagles offensive coordinator Brian Johnson. They've reportedly requested interviews with as many as 11 candidates.

The Titans also interviewed Antonio Pierce, who had been the interim head coach of the Las Vegas Raiders, but on Friday, the Raiders announced they had named him the official head coach.

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Get to know Aaron Glenn

A former first-round pick who played 15 years in the NFL as a cornerback for the New York Jets, Houston Texans, Dallas Cowboys, Jacksonville Jaguars and New Orleans Saints, Glenn transitioned into coaching in 2014 and has quickly risen through the ranks thanks to his skills as a leader and motivator.

Glenn has been the Lions' defensive coordinator since 2021. The unit hasn’t performed as one of the league’s best; the Lions have ranked 31st, 30th and 23rd in the league in scoring defense in his three seasons in charge. But he also has developed a young group, especially on the defensive line where budding stars such as Aidan Hutchinson, Alim McNeill and James Houston have been extremely productive. Rookies Brian Branch and Jack Campbell also had impressive 2023 seasons, putting the Lions’ defense on an upward trajectory thanks to homegrown talents.

Prior to his arrival in Detroit, Glenn spent five seasons as defensive backs coach in New Orleans, two seasons as assistant defensive backs coach in Cleveland and a couple of years in the Jets’ scouting department. While in New Orleans, Glenn helped develop first-round pick Marshon Lattimore into one of the best cornerbacks in the NFL while also coaching safeties Vonn Bell and Marcus Williams.

As a player, Glenn had 41 interceptions and made three Pro Bowls. He remained productive into his 30s despite the rigors of playing cornerback, logging double-digit passes defended every year between his age-28 and age-33 seasons.

Speaking with the Detroit Free Press this week, Glenn hit one of the most important talking points surrounding the Titans’ coaching conversation, addressing the importance of collaboration between coaches, the personnel department, ownership and to achieve the franchise’s goal.

“And making sure that, that vision, that collective vision, is the same,” Glenn told the Free Press. “Because once that’s intact and you keep — all three of you guys, or women — are saying the same thing, that feeds down to the staff, then that feeds down to the players . . . A coach is about people and you bring the right people in, you’re going to have the right culture.”

About the Tennessee Titans open head coach job

Per NFL rules, the Titans may conduct only virtual interviews with coaching candidates employed by another organization until the end of the second round of the NFL playoffs. The Titans are free to interview any candidate not currently employed by an NFL organization at any time and have been able to conduct virtual interviews with employees of teams that missed the postseason since three days after the completion of the regular season. The team will be allowed to conduct virtual interviews with coaches on teams that made the playoffs three days after their first playoff game ends.

TIMELINE: 11 dominoes that led to Mike Vrabel being fired as Tennessee Titans coach

This is the Titans' first coaching search in six years. Controlling owner Amy Adams Strunk dismissed Vrabel on Jan. 9, wanting the franchise to improve its collaboration and alignment between ownership, the front office and the coaching staff.

Nick Suss is the Titans beat writer for The Tennessean. Contact Nick at nsuss@gannett.com. Follow Nick on X, the platform formerly called Twitter, @nicksuss.

This article originally appeared on Nashville Tennessean: Lions' Aaron Glenn interviews with Tennessee Titans for head coach