I think the 3rd down conv rate is just one of many symptoms of a bad/awful defense. The DL is average, but it is not physical at all (I expected to be worse than it is, however we’ll see when we get to Big 12 play). The LB are so non-athletic it makes me think Hrebec was cloned (the best LB athletes are sitting on second team – I guess they haven’t “learned the playbook”). The secondary is ok, however as _Fan points out, Roberts is horrendous. I think we will show more on defense as the seasons wears on – we actually went to some nice zone blitzes against LaLa.
Specifically on 3rd down, we have problems with speed – we don’t get to the ball fast enough, whether it’s a screen, draw, option rout over the middle – we play soft then close – however we don’t have the athletes to make up that ground quick enough. Nor the experience.