Coaching: Oklahoma has a few position coaching swaps, but there’s nothing overly meaningful here. The Sooners lost co-defensive coordinator and corners coach to the Buffalo Bills and running backs coach DeMarco Murray, a program legend, to the same role with the Kansas City Chiefs. It also fired tight ends coach Joe Jon Finley. The team responded by hiring Michigan DPGC and defensive backs coach LaMar Morgan as corners coach; Deland McCullough, most recently of the Raiders but perhaps better kno…