I recall the board screaming the last few years about the Steelers inability to close out games and prevent opponents from scoring at will late in games.
The Steelers rank #3 in the league in fewest opponent points in the 4th qtr (AZ, DEN...go figure).
I would say LeBeau has done a remarkable job with this defense in adjusting for life without Troy. And maybe it will extend Troy's life a bit by showing he doesn't need to be superman in every game.