if you compare units between the Texans and Colts the Texans have better units every where except at QB.
If true the Texans need to quit jerking around with the quarterback position and fix it. If the Texans truly aren't drafting QBs because they aren't the perfect fit for the system*, they need to get over it. There are quarterbacks available in every draft that aren't elite, but are better than the mediocre game managers this organization uses. For instance, I'd like to see them use a first round draft pick to get a non-elite, non-mediocre, non-bust Roethlisberger type then wait around for the stars to align until the team can draft a "guaranteed" elite quarterback like Manning. Continuing to bet on mediocrity and hope isn't going to cut it in the future any more than it has in the past. This is a quarterback's league. A corporate twiddling of thumbs with Joe Average at QB isn't the path to greatness.
*I am also open to the fact that this is a theory promulgated by fans and isn't the Texans plan.