Yeah, I'm still hoping Houston finds a way to pick up D'Brickashaw Ferguson. I'm not knocking on Reggie Bush and I think he's a good enough prospect to go #1, but the bottom line is the Texans wouldn't fill a need by drafting him.
Like VX said, Domanick Davis is a completely serviceable RB for Houston that can consistently run 1,000+ yards per season, so drafting Bush isn't going to help them loads. I still think it would help them alot if they solidify their offensive line with players like Ferguson so Carr doesn't get sacked as often.