Heres the best, and really only, way to explain the Charles Barkley Jersey impact of John Chavis at Texas A&M after all of four quarters: the Aggies defense yes, the defense is no longer the teams critical question.The quarterbacks are.MORE: | | HAYES: Thats right, the one constant in three seasons under coach Kevin Sumlin is now full of controversy. And the Aggies offensive staff has no one to blame but themselves after a 38-17 victory over Arizona State.While the defense had a fantastic debut in its first game with Chavis as coordinator, Sumlin pulled starting quarterback Kyle Allen for freshman Kyler Murray and officially kicked off the teams Justin Anderson Jersey quarterback controversy for the foreseeable future. Its unavoidable now.Instead of letting Allen work through early problems, the staff went with Murray, whose initial energy boost didnt last and whose lack of experience recognizing defenses was quickly exposed.Fortunately, Allen didnt sulk on the bench and returned only after Murray Clarence Weatherspoon Jersey was injured and led the Aggies to a strong second half on offense. Meanwhile, there was Chavis new defense: the ironic safety net.They played aggre sive and fast; they were athletic and made plays on the ball. They did everything they couldnt do over the last two seasons when they were routinely embarra sed.Theyre quick and rangy off the edge with pa s rushers Myles Garrett, Maurice Cheeks Jersey Daeshon Hall and Qualen Cunningham, who contributed to eight sacks. The linebackers are quick and close quickly, and the secondary plays with much more confidence.One of the Pac-12s best offenses managed all of 291 yards, converted just 5-of-19 third downs and averaged 2.2 yards per carry. Thats championship defense; thats a unit that can make Sergio Rodriguez Jersey up for flaws elsewhere.Flaws, or controversies. Were going to need both of those (quartebacks), Sumlin said after the game. Were going to have a plan for both of them going forward.If the Aggies' defense plays like it did going forward, it might not matter who plays quarterback.