COACHING USC’s offensive coordinator and offensive line coach, Josh Henson, left to become the offensive coordinator and tight ends coach at Purdue. This triggered a pair of internal moves and an external hire: quarterbacks coach Luke Huard was promoted to offensive coordinator, tight ends coach Zach Hanson moved to offensive line coach (he was very good there for Tulsa in 2020 and 2021), and Colorado State wide receivers coach Chad Savage was hired as tight ends coach (another very good get). I…