How cute this thread is.
I am watching a video of the play right now where Foster blindsided Williams.
Williams is not even aware Foster is about to block him. William is getting blocked out of the play by another linemen. He is not taking the play off. Foster is at an angle behind him on the opposite side from where Williams is getting blocked. Williams finally realizes the play is occurring away from him and he is getting blocked away from it. Foster is standing directly behind him. Williams turns. Instead of just stepping infront of Williams and blocking high, a way that would have easily taken Williams out of the play, as Williams turns and has his side facing Foster, Foster dives shoulder-first at his knees.
Williams is not in anyway responsible for what happened. Some of you are just rationalizing.