49ers left tackle Joe Staley accepted some of the blame for the team's problems on the offensive line in a 30-7 exhibition loss to Houston on Saturday night. "Very disgusted with what we saw on the offensive line," Staley said. "Coach challenged us, he challenged us in the meetings to come out and have a really great week of practice and really great game. We've got to get going. The season is upon us and we've got to play a lot better than that." Staley, a fifth-year pro who received a $42 million, six-year contract extension in June 2009 to lead this line for the long term, was eager to get back on the practice field because he had a "bad feeling" still lingering from the game.