Martinez's speed is the reason he ran away from the secondary without having anyone within 15 yards of him. His speed was not the cause of him waltzing through the front 7 without any threat of being touched. As I said before Nebraska obviously has much more talent than KU, but that doesn't mean that KU can't run successfully if the defense doesn't patch some of its issues. The ends bit on that zone read every time and were not quick enough or decisive enough to make a play. If you can't get to the point of attack in enough time, stay home, mitigate the damage. That performance cannot be explained away with Nebraska's talent alone, the coaching staff better patch this leaking boat up.
The ends actually didn't play that bad. We had many more issues from LBs, DTs, and Ss. And many of the run fit issues can be fixed.
Also, I will point out that knowing the speed of Martinez and the quality of Helu puts a ton more pressure on the defense. I simply think that knowing Webb is not much of a threat, knowing that Sims is a decent, but not great back, and knowing that KUs offensive line won't be able to block us one on one like NU did will make a big difference in our ability to make plays.
Plus, KU will not be able to scheme us like NU did, as I noted they ran some of the most creative and unique looks of zone read that I've ever seen. Even if KU wanted to run it, no way you can put that in over a week and a half and run it like NU did.