From David Haugh: The Bears responded with their loudest statement in years in the NFL’s oldest rivalry, a 17-13 victory that suddenly made them the most optimistic five-win team in the league. Just a little more than a year ago, the Bears skulked back from Wisconsin after a 55-14 blowout that convinced ownership something drastic needed to be done. They returned home in the wee hours of Friday morning envisioning NFC wild-card scenarios. “Huge win,” cornerback Tracy Porter declared. “We’re in the playoff hunt.” That’s what happens when you beat the Packers at Lambeau, when Jay Cutler outplays Aaron Rodgers, when the defense shows as much improvement as any in the NFL.