The best offenses in football perform well even when the defense might know what's coming. It's known as imposing your will on the opposition.
In order for the running game to be more effective, the Steelers were going to have to get to that point. And over the past two and a half games, they've done just that.
In fact, if you look over the past three games, the Steelers have averaged 154.3 yards per game on the ground, highlighted by an output of 217 yards in a 20-10 win over the Saints in Week 10.