While the Packers defense has been rolling along in the last few weeks, they have not faced an offense as dangerous as the Chargers.
An argument can certainly be made that Green Bay is undefeated through five weeks because of their defense. While that unit has been impressive in the last two weeks, they have yet to face an offense of San Diego's caliber. Ranked second in total offense, the Chargers pose a big threat that the Packers cannot overlook ahead of their bye week.
The defense could once again be the difference in this game.