In week 8 we see, there is quite a bit of work to do before the Defense is competitive.
In the first half we had some bright spots out of the secondary as Oklahoma's run game was taking off. The second half though, that's when things began to really get out of hand. Tech's defense has a big reputation for a terrible run defense. I won't go into the gory stats, but as many have seen it doesn't get much worse. Until the Defense can stop the run consistently we will have that reputation and teams will bend the defense to their will.