In that same game, Trevathan (the DEN LB mentioned in the thread title) was covering a guy deep down the sideline. Trevathan ended up getting better position on the ball than the OAK player and gave himself a chance at an INT. The OAK player, aware of the situation, played a little D and it ended up just being incomplete. Contrast that with the 2nd INT that Manning threw. Thomas appeared to be unaware of Woodson as he simply lifted his hands and waited for the ball to come to him. It's an understandable mistake by the WR caused by either unawareness or lack of aggression. Either way he obviously did just wait for the ball to fall into his hands rather than going up for it. It wasn't a perfect throw by any means. It was a roll of the dice by Manning to try to make a play downfield. It didn't pay off.
http://www.nfl.com/videos/nfl-game-h...-Manning-again