The way the 49ers lost to the Cardinals on Monday had some scratching their heads. Offensive coordinator Mike Martz said on Tuesday that the officiating, not the play calling, is to blame, according to an ESPN.com report. The Cardinals stopped Michael Robinson on a run up the middle from the 2?-yard line as time expired, preserving Arizona's 29-24 victory. Martz said the spot of the ball doomed the play.