Sorry, that snarky comment in the headline about Cowboys safety Roy Williams not being able to cover was all mine.
Fact is, he can't play in space, which is why he has become maybe the most one-dimensional player in the game. Great hitter, can't cover. Not a good combination for a safety, especially one consistently voted to the Pro Bowl. Throw in the fact that he was once suspended for yet another illegal horse collar tackle, and ... you get the picture.
In any event, he met with his coaches after reports surfaced that he was uncomfortable with his role on the defense. He feels better about things.