LeBeau left for a stint as head coach of the Cincinnati Bengals, but he returned to Pittsburgh and the Steelers have been great on defense since.
LeBeau is the architect of the "Blitzburgh" defense, a 3-4 system that is ultra-aggressive.
Year in and year out, you can count on the Steelers being among the toughest teams to run again, and that's the case this season. Pittsburgh is ranked No. 1 in the league in run defense, as well as total defense, this season.
The key to the run defense might be nose tackle Casey Hampton, a first-round pick in 1998.
The secondary isn't that well known, but Polamalu is a star. He's probably the best safety in the game right now, with Ed Reed having not played this season as he recovers from a neck injury.
Polamalu does everything for the Steelers defense. He'll blitz, he's tremendous in coverage and he'll even jump over the top of the line of scrimmage to meet a ball carrier in short-yardage situations.
The Dolphins clearly have a tough task in trying to score a lot of points against the Steelers, who haven't allowed more than 17 points in any game this season.
It would be surprising if the Dolphins have much success running the ball, so it will be up to Chad Henne to have a big game through the air.
For that to happen, the Dolphins have to protect him, mostly from Harrison and Woodley.