when a dd fav. is down by dd at the half; play them to cover the second half. N.ILL. was down 14 at the half and rolled back to win by 16. Usually when a dd fav. loses a game, it's nip and tuck the whole game. Also even if they lose the game in this scenerio they almost always win or cover the 2nd half. This happens very infrequently; but when you see the opportunity, jump on it.