Can Steelers Generate Chunk Plays?

The Pittsburgh Steelers are 29th in the NFL in percentage of explosive plays -- covering 20 or more yards -- per offensive snap. The Steelers have had 11 games to get their offense in gear but are 28th in the league in total offense. Is this as good as the Steelers get or can quarterback Aaron Rodgers put a charge in the offense during the last six games of the regular season?