WalterFootball has an updated mock draft with the Texans taking Dan Williams, defensive tackle from Tennessee:
If Donovan Warren and Earl Thomas are both off the board, the Texans will be in a really tough spot. They'll either have to trade up for one of those two guys, or move down about 10 spots. As it stands now, the only players who remotely make any sort of sense here are: Damian Williams, Dan Williams, Sean Weatherspoon, Brandon Ghee and Taylor Mays.
Of those options, Dan Williams is the only non-reach who satisfied a dire need. The Texans could really use a solid nose tackle to bolster their defensive interior, and Williams is coming off a great year in Monte Kiffin's defense.
I like Dan Williams and I don't have any problems with this pick if Donovan Warren and Joe Haden are both gone. Williams is not only a best in the trenches but he can get after the QB and do more then just take up space.