Regardless of the 2H, the game was decided by that 10 or 14 pt turnaround at the end of the 1H.
18 seconds left, Cards call time-out on 1st down at the two. Their last time-out. I don't know how long it would have taken Warner to spike the ball, but after the time-out the Steelers knew it would be three passes.
This was the perfect spot for Hightower to run it in, as he has done all season with balls inside the 5 yard line. If he doesn't get it in, then call the time-out. That leaves a pass and a FG attempt.
The time-out to stop the clock on 1st down helped the Steelers tremendously in terms of not having to (seriously) defend against the run.
18 seconds left, Cards call time-out on 1st down at the two. Their last time-out. I don't know how long it would have taken Warner to spike the ball, but after the time-out the Steelers knew it would be three passes.
This was the perfect spot for Hightower to run it in, as he has done all season with balls inside the 5 yard line. If he doesn't get it in, then call the time-out. That leaves a pass and a FG attempt.
The time-out to stop the clock on 1st down helped the Steelers tremendously in terms of not having to (seriously) defend against the run.