Missed tackles hurt and the inability to get off the field on 3rd downs. This is a good defense, the amount of 3rd and longs the Bengals faced is a testament to that. We just don't have anyone who can cover an AJ Green kind of player. Also, the 40 yard Gio run, lets not beat ourselves up on that.. the D had been on the field for more than an hour with only a short break. They were gassed, they did a good job flying to the football and should have had him for a loss, I think fatigue played a huge role in that 4th quarter.