By Frankie Taddeo The Texans have lost seven of their last 10 road games and face the home favorite Raiders. Two teams coming off a bye will meet in Week 7 when the Texans head to Las Vegas to square off with the Raiders. Surprisingly, Las Vegas has not found much success at Allegiant Stadium posting an 8-11 record through the first 19 games. The expectations for Derek Carr and the Raiders were high heading into the season, but thus far Las Vegas has been one of the biggest disappointments winning only one of their first five games. Houston, who is just 1-5-1 SU over their last six games datin…