PFF grades: Calais Campbell, Patrick Peterson great, but defense struggles for Cardinals vs. Vikings

The Arizona Cardinals kicked off Week 14 with a 23-20 win at home over the Minnesota Vikings. Those who saw the game know it wasn't the best performance by Arizona, both offensively and defensively. But on a short week, they got the job done.

Pro Football Focus released their weekly game notes and, looking at the defense, there were a couple of standout individual performances, but struggles as a unit.

Calais Campbell had his finest game as a pass rusher with a sack, three hits on quarterback Teddy Bridgewater and three hurries. PFF's grade for him as a pass rusher was +3.0.

It is that sort of play the team is expecting out of him. Bruce Arians noted it. "I thought Calais showed up in the stat sheet tonight," he said. "I thought he was very disruptive, and that's what we expect of him."

Campbell has gotten very high marks all season from PFF for his play against the run.

Patrick Peterson also played well individually. He was targeted seven times during the game and "allowed" only one catches for nine yards. That on catches was a bubble screen.

But after the individual play of Peterson and Campbell, things drop off.

As a team, they missed 11 tackles.

Justin Bethel had a rough time in coverage. He was targeted five times and gave up four catches for 40 yards. Bethel, Kevin Minter and Ed Stinson all got negative grades.

They still got the win, but there are things to work on.

In fact, that is the way Bruce Arians sort of likes it. "I'm happy that on Tuesday I can chew their ass out and we can get better," he said. Ass chewings are always better after a win. They win and they still think they stink. Their final three games are against teams who will either make the playoffs or will be in the mix until the end. In each game, the defense will have to be better.