I am wondering how much the crowd might be a factor in this game, after all the crowd will be a pro-steelers crowd. Steelers fans travel maybe better than any other pro-sports team, certainly in football. Crowd noise could induce some Cardinal false starts or possibly delay of game penalties. Cards have got to avoid any type of negative plays cause its really hard to get out of 2nd and long or 3rd and long against the Steelers. And more often than not its those sitautions that the Steelers will create big defensive plays, INTs, forced fumbles, sacks, etc.