I agree. But, who's to say that the teams drafting below the Texans don't feel the same way? I think the 3 players teams might trade up for that could be available at #10 are Anderson, Willis, and Lynch.Who's to say Okoye is better than Harrell or Revis/Hall than Houston? There's no value in staying.
Anderson is a pass rusher who can play all three downs. That's attractive to many teams.
Willis is the most athletically gifted of the top LBs. And the one with the most experience at MLB (but he could also play OLB).
Lynch is the clearcut #2 RB. If he gets clearance on the character issue, the Bills and the Pack could get into a bidding war.
Right now, I'd put the chances of the Texans moving down at less than 30%. But as Lloyd Christmas might say, they still have a chance.