Cory's Corner: Defense Must Halt McCaffrey

All of a sudden the Packers have a toughness problem to go along with their tackling problem.

The defense that looked so indestructible early on in wins over the Bears and Vikings now has a soft gooey center.

Green Bay gave up 159 yards rushing to a mediocre Chargers team last week and the Packers rank 31st in yards per play in the last six games.

It's not exactly a great time to see Panthers running back Christian McCaffrey, who is in the conversation for MVP because he leads the NFL in all-purpose yards and is second in the NFL in rushing.

"Has great vision, he's always moving forward," said Packers defensive coordinator Mike Pettine. "For a guy that's relatively slight, he runs upright. He…