Other than the Giants and Cowboys game, the offensive line has been the most productive consistent unit on this team. They're the best ZBS team in the league and they've added power runs into the arsenal as well. Arian Foster is a great instinctive ZBS back yes, but this offensive line has been there with him the whole way paving the way for his big year. In previous years this o-line's smallness seemed to be the biggest thing holding it back, but this year the group's athleticism and speed has proven to be a distinct advantage. Just go back and watch the Chargers game. The Chargers were 1st in the league in every defensive category going into that game and the Texans o-line chopped up their front seven. Pass blocking, run blocking, screens, it was great to see. When this team has a whole new staff next year (I assume/hope/pray for), I don't think a major offensive line overhaul is necessary. And I think that's one of the most attractive aspects of the Texans' head coaching job.