A note on LeVoir from a Rams fan
Despite everything you have read, the Rams offensive line is not a disaster at this point and LeVoir has actually played pretty well. The Rams are pretty strong at tackle (Pace, Barron, Goldberg, Greco) and guard (Bell, Incognito and Shuening).
Levoir is a sound player. He actually outplayed the Rams #3 pick Greco but he is experienced in the system and Greco is believed to have a higher upside. LeVoir was steady in all four preseason games. In the first three he was playing against the number two's and three's of Tennesse, San Diego and Baltimore. Against KC, he got to play against Hali and the number two's. Twice I saw him look bad against a spin move but otherwise he appears to be a good pass blocker.
LeVoir is no road grader but he is a big guy with some athletic ability and a good attitude. He may never be starting material but he is the kind of guy who will do what the coaches ask.