A week into their search for a new head coach, the Tennessee Titans have confirmed interviews with four candidates, Baltimore defensive coordinator Mike McDonald, N.Y. Giants offensive coordinator Mike Kafka, Las Vegas interim head coach Antonio Pierce and Cincinnati offensive coordinator Brian Callahan. According to reports, they have requested permission to interview 10 coaches, some of whose teams remain alive in the NFL playoffs. ... Callahan looks like the first to emerge as a serious candidate, and his family ties could make for an interesting addition to his staff. ... Detroit defensive coordinator Aaron Glenn is on his list. While he never has been a head coach, his work as an assistant has been well-received by players with his current and former franchises. ... Most of those the Titans want to interview also have drawn interest from other teams in search of a coach. If it comes down to it, does Tennessee have enough in its favor that someone would choose to coach the Titans over another team? ... Thus far, former coach Mike Vrabel has not drawn a lot of reported interest. That either means his work with the Titans was not as highly regarded as some might think or he simply plans to sit out a year or more before he returns to an NFL sideline. ... While he says he will be forever a Titan, Derrick Henry's latest public comments suggest that he will be on a different sideline in a different uniform in 2024 -- and he is fine with that. The soon-to-be free agent says the most important thing at this stage of hs career is to be with a team that has a legitimate chance to win the Super Bowl.