After Tommy Maddox was hurt after the first game, rookie quarterback and first round pick "Big" Ben Roethlisberger had to fill the position as starting quarterback. So far he is undefeated as a starting quarterback and has beat the NFL record 7 for a rookie quarterback being undefeated. 
A lot of other players on defense and offense have helped Big Ben out. Two of them are Jerome Bettis and Duce Staley. Jerome Bettis Has been on the team for a while. but since he might be wearing down the Steelers picked up Duce Staley to share time at the running back position. With Jerome Bettis.
Along with two running backs there are two excellent wide receivers, Plaxico Burress and Hines Ward. Plaxico and Hines are both key players on the Pittsburgh offense. Another great receiver for the Steelers is Antwaan Randle El, who helps move the ball downfield.  
To help the offense out the Steelers coach Bill Cowher has put together a great defense. Joey Porter the Steelers right outside linebacker and the defensive line don't let the other teams gain any yards on the ground. 
What is a defense without defensive backs? That's were newly acquired cornerback Troy Polomolu comes in with the rest of the defensive backs. With all this talent it is a wonder why Bill Cohwers new Steelers haven't won another Super Bowl. Maybe with all of the newly acquired talent "Big" Ben can lead his team to a Super Bowl and take it home. 
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