Getty Brian Callahan In their latest search for an offensive coordinator, the Chargers have just interviewed a former head coach. The Chargers announced on Friday that they had completed an interview with former Bengals defensive coordinator and Titans head coach Brian Callahan . He had called plays for the Cincy offense under Zac Taylor form 2019 to 2023. However, once hired by the Tennessee Titans, he only lasted a year before being fired. However, in his time with Cincinnati, he was part of