Steelers' quarterback Ben Roethlisberger, who is battling an injured shoulder, has admitted that he isn't happy with how he's been playing so far this season. "I have played subpar football to date, and it's time for that to change and it will change," Roethlisberger said. "This is the second half of the season for us and me and you'll see a different quarterback and a different offense, I think." The MRI's taken earlier this week on his shoulder have shown no structural damage.