Washington Redskins Coach Mike Shanahan said that in addition to poor pass protection by the team’s offensive line, quarterback John Beck wasn’t at his best Sunday. The coach said that not all of the Bills’ nine sacks could be blamed on the team’s patchwork line.

Beck completed 20 of 33 passes for 208 yards and two interceptions, and was sacked nine times. His quarterback rating of 53.6 in the Buffalo game was the second-lowest of his career, which is comprised of five games as a rookie in 2007 and two games and one quarter this season.

Redskins quarterback John Beck (12) is sacked in the third quarter. (Toni L. Sandys/Washington Post)

Shanahan said the rough outing is part of the growing process.

“John, like most young quarterbacks, is going to go through some growing pains, as I shared with you guys before,” Shanahan said. “There’s going to be some good games, there’s going to be some games where he’s a little off. I’d say yesterday was a game where he was a little off.”

Beck took the blame Sunday for some of the Redskins’ sacks. He said he wanted to look at tape of the game, but believed that he was sacked several times because he didn’t get rid of the ball soon enough.

Shanahan agreed that Beck, as well as receivers or running backs, were responsible for some of the sacks.

“Everybody looks at the offensive line, saying nine sacks and says it was the offensive line, but that’s not always the case,” Shanahan said. “There’s a lot of people involved in sacks. Some times it’s pass protection, some times it’s routes, some times it’s quarterback. A lot of things will go into a sack, and of course this game is no different.”