HOUSTON Both coordinators at Houston are gone, with Shiel Wood leaving for the same job at Texas Tech on defense and Kevin Barbay being fired on offense.  Willie Fritz brought in fired Florida DC Austin Armstrong to replace Wood. The coach twitter/white board guys like him but the results are abysmal so far in his career. Standout defensive PGC Zac Etheridge also left for a job at Miami and was replaced by a guy who played for Willie Fritz at Tulane in 2020. OC is a reunion with Slade Nagle…