OK, we all know that players are supposed to run the gameplan, but the coaches are more responsible and should know the rules of the game. Hence, Why would Kubiak challenge a play, that was not going to get you anything to begin with. First, the play was blown dead after the kicker dropped the ball, therefore the recovering team not being able to advance. Second, what was he trying to accomplish.? The ball was the Texans regardless. What did it cost the team? A time out that could be used later in the game in key situations. BUT, let's keep blasting Carr. Let's keep blasting the arrival of Mario Williams. Kubiak, or coaches in general, are just as much to blame for untimely playcalling, lack of preparation, or losses!