Confusing ends and means

Vic Carucci on NFL.com

I was as impressed as anyone with the way Ben Roethlisberger moved and threw his way to a franchise-record five touchdowns. But that's what a good quarterback with above-average receivers should do against a team missing both starting cornerbacks. I was as impressed as anyone with the very convincing Jack Lambert imitation that James Harrison gave in the first half. But that's part of what the league's top-ranked defense should do against an offense, and especially a quarterback, that can't out of its own way. What troubled me was seeing the Steelers' No. 2-ranked rushing attack struggle to move the ball on the ground, even if it didn't have to.

Why should a team beat their head against a wall. The Ravens sold out to stop the run and left their inexperienced DBs exposed. The Steelers made them pay for that. (Big time).

What, exactly, would be gained by running the ball into the teeth of the defense? The Steelers were already reaping the benefits of a running game.