By Merrill Reese: The Eagles haven’t exactly prospered in Pittsburgh in recent years, but now they have a chance to change all that.  It won’t be easy.  The Steelers are 1-2 and coming off their bye.  They’re also expecting some key players back from injuries.  On the other hand, Sunday night’s win meant a lot in the confidence department.  The feeling that you can drive down for a game-clinching score when you absolutely have to is a real plus.