go knock on troy's door now and request the same that you did from harrison.
He's signed thru 2014. Why would you rush to extend him before seeing how his knee is?
It's a business just like the players always say it is. You think Lewis, Wallace, etc are doing the Steelers any "favors"? Please...
You trade instead of releasing a player .... see the Pats.... see the Ravens.
They get something in return. They operate like a business just like the NFL is and they're still well run organizations just like the Steelers.