Everyone keeps saying that guard is Pitts' "natural position", but this is the first time he has ever played guard. It will take him some time to adjust. Weary and Washington didn't get the job done filling in for Wiegert. McKinney routinely gets manhandled by decent DT's.
The offensive line definitely had a bad day, but at least the Texans came out of KC with a win. Just imagine how bad it would be to have 0-3 around your neck like the Chiefs do.