From the link below:
Defensive end Jared Allen took sharp exception to the suggestion that the loss had exposed fault lines in the offensive and defensive structure of the team.
"I don't think it exposed anything," he said. "It just shows what happens when you don't tackle people in the NFL, when you don't make the plays you're supposed to make against a quality team like the Pittsburgh Steelers. They came out and played like Super Bowl champions and we didn't match them."