As opposed to last season, the Packers set up in their base defense for a majority of the snaps against the 49ers. It didn't exactly work.
There's always cause for concern when you allow Alex Smith to complete 20-of-26 passes and force zero turnovers, although Clay Matthews and Charles Woodson were able to combine for four sacks of Smith.
But, pressure on the quarterback isn't the issue here—it's figuring out how to drop back into coverage and what personnel should be used for each scheme. From what I saw on Sunday, there are a few guys who shouldn't be in coverage—and one of them is a cornerback.
The leash on Jarrett Bush is growing shorter and shorter. Had Devon House (shoulder) stayed healthy in the preseason, this wouldn't be an issue, but such is not the case. House has been limited in practice, but Casey Hayward is healthy and rearing to get a chance opposite of Tramon Williams.
There were also more secondary problems, as nickel safety MD Jennings blew an open field tackle and was subsequently replaced by Jerron McMillan. There was also a clear miscommunication on the Randy Moss touchdown reception.
Finally, watching DJ Smith and Nick Perry in coverage—especially Perry when matched with Michael Crabtree—was brutal. The loss of Desmond Bishop is huge, no doubt, but it was as if these guys were just thrown into the fire. Errr. Never mind.
The 49ers game should open the eyes of Dom Capers when it comes to who should be in for each situation. The overuse of the base defense led to linebackers matching up with receivers, and that just can't be happening if the Packers want to succeed at defending the pass.