Keep in mind even the best pre-draft mock score is only around 75% accurate. Still by this time with only three weeks or so boards across internet become more aligned. There is a group of players or directions Texans could choose come draft day depending on who actually is available & what if any offers come calling.
Per Dan Shonka I would advise changing his Texan pick to Hightower. In my own mock as well as others (post Texans trading DeMeco Ryans) ILB Dont'a Hightower makes most sense he would be a plug & play fit