Chris O’Leary was officially announced as defensive coordinator on Wednesday, and if that name doesn’t yet ring nationally, it will. In 2024, O’Leary joined Jesse Minter’s Chargers staff as safeties coach, quietly shaping the backbone of a defense that finished No. Now he’s back, replacing Minter, who left to become the Baltimore Ravens’ head coach in one of the offseason’s great NFL dominoes. 3 O’Leary replaces Jesse Minter who left to become Baltimore’s head coach. The Chargers are reshaping their coaching staff after losing coordinators to head coaching jobs, pairing O’Leary with new offensive coordinator Mike McDaniel as Harbaugh’s top lieutenants.