Honestly I don’t think the defense is the problem. My main concern is why Kuithe doesn’t get the ball more and why Utah doesn’t hit the edges against a team that has less speed than they do. If the offense can step up, and hang onto the ball, the Utes should win.
SDSU is a run heavy team, but SDSU does a great job of setting up their run game spreading the field coverage with solid pass play calling and play action. Based on Utah’s apparent Dline and Oline weakness, SDSU could cause problems for Utah.