Regardless of who is in there to execute it, the practiced response to coverage on that play was ludicrous for the 4th Q with the game on the line. Any point in the game where we are ahead, sure, run it. If the play was supposed to be DD split out and you think that's a good call in the 4th Quarter, down by 7, then fine (I do, FWIW). However, you always have to consider plan B. If plan B is a FB dive at that point in the game, maybe a professional offensive coordinator should think about these things.
Overall, I agree that he did a fine job in the first half, but the Texans play "not to lose" far too often in the second half than they should. Play to win, guys. Perhaps if Palmer didn't already have a history of calling 3rd-and-long draw plays with the game on the line, the fans would be a tad more forgiving.