First off let me say this. I only saw the first half of the game.
During the first half the Cowboys didn't get close to Carr and that was because Carr did exactly as he should have. He dumped that ball within 2.5 seconds. (sometimes much faster) Your odds in getting pressure on the QB without a blitz in less than 2.5 seconds is almost none. A offensive linemen would have to not block someone or just outright fall down. Looking at the stats, We gave up 10 of 15 for 85 passing yards in the first half vs 13 of 23 for 113 in the second half. I don't see any real difference in the defense in the first and second half that can't be accounted for by the offense actually starting to score. When the scoring starts the Texans stop running and become more one dimensional which allows the defense to tighten the pass coverage. As you can see the Texans had more passing yards in the second half, yet the passing percentage dropped from 66% to 56% and t hey had 2 INTs. Thats what happens when you become one dimensional by playing catchup.
I think the Cowboys have to be really worried about their pass rush. They don't seem to have much without blitzing. I think that is partly due to Zimmer not having a full grasp of the 3-4. I won't blame him for it as it's not because he isn't an qualified NFL defensive coordinator. It's because he is learning a new system. I would either lay the blame on Parcells for keeping him as the defensive cooridinator or more likely, Jerry Jones insisting that he stay. Zimmer is a great coach, he is just coaching the wrong style defense. With the Cowboys secondary the front seven should be able to show more complexed looks, but choose to keep the rush simple which makes the offensive lines blocking schemes easier to handle. Instead of making the rush more complexed they tend to make the coverages more complexed. (big props to Ellis for making the switch as quickly as he did and at 270lbs!)
The question is, when will the Cowboys start mixing it up on the line. I'm talking about delayed stunts and/or delayed blitzing. (which seems to eat the Cowboys o-line alive!) Anything to add a wrinkle to the rush and make the opposing offensive line work harder. At this point we are seeing straight rushes of four (though we do blitz too) against five offensive linemen and either a tightend or a RB blocking. A vanilla four man pass rush against 5-6 blockers generally doesn't provide much pressure.
The Cowboys winning the game was expected, but I got a lot more pleasure out of the Commanders getting dished by the Titans and the Saints dispatching of the Eagles. SWEET!