Not to derail the thread into draft talk, but in preparing expectations for a Bill O'Brien draft, we can look at his influence in the New England 2011 draft choices:
1) Nate Solder, OL (Colorado) Starting LT
2a) Ras-I Dowling, DB (Virginia) Injury bust
2b) Shane Vereen, RB (California) Valuable 3rd down back
3a) Stevan Ridley, RB (LSU) Starting RB
3b) Ryan Mallet, QB (Arkansas) Backup QB, Great Value pick
5a) Marcus Cannon, OL (TCU) Starting OG, took a 5th rd flyer on a guy with cancer
5b) Lee Smith, TE (Tennessee) Cut, BB loves his TE's
6) Markell Carter, LB (Central Arkansas) Cut
7) Malcon Williams, DB (Trinity Valley CC) Cut, This is where you should take chances on guys like this.
My takeaway is that he has no problem going offense heavy. I would expect his draft for the Texans to get an OT, OG, QB, TE, and RB. That's already five out of seven, so a trade down in any round is likely.