Giving up td's on opening drives in 6 of 9 games is not good defense.
The defense also gave up 4th Q leads in our 2 worst losses, USF and Toledo. Not good defense.
Letting USF run the ball down our throat all game despite the fact they could hardly complete a pass is not good defense.
Giving up over 400 yds total offense and almost 200 yds rushing is not good defense.
IMO, we have good enough players. Our coaches have just not made the adjustments needed at times and have not changed things up enough in games to keep opposing offenses guessing.