COACHING The only real loss from Missouri’s coaching staff is co-defensive coordinator and linebackers coach DJ Smith leaving to become the DC at App State. They didn’t hire any direct replacement for him, interestingly enough. Offensive assistant Sean Gleeson was promoted to quarterbacks coach over the offseason. I don’t really have any thoughts on any of this, it’s fine. Defensive line coach Al Davis also made a surprising decision to step down from the team in mid-May, leading to defensive ta…