You seem to be right on with your post. The Packers defensive scoring stats have been boosted mostly by the Jets game and also by the Vikings and Cowboys games (both of which were the last games coached by Brad Childress and Wade Phillips before they were fired). I'm interested to see how our defense stacks up against he best offense in the league.
Jenkins being injured (he might miss the rest of the season) is one that really hurts. He's one of the key cogs on our defense (and IMO our best D-lineman) and hasn't gotten nearly enough recognition. And he'll be replaced by a guy like CJ Wilson or Howard Green (who was cut by the Jets in week 7). Howard Green is a big guy that will be hard to run on, but won't get a whole lot of pressure on the QB. CJ Wilson, is similar to Jenkins in size and has shown some promise, but he's very inexperienced and probably won't hold his ground in the run game.
Matthews (we call him "The Claymaker") does have an injured shin, which cuts into his practice time but he insists that it doesn't affect him in the game. IMO it HAS affected his play slightly... he's still a beast, but he's not the same beast that he was the first half of the season.
The bread and butter of the Packer Defense is our corners. Charles Woodson will play the slot receiver when in the nickel so he's closer to the QB where he can more easily blitz, and he's been given a license to improvise by the coaching staff. Dom Capers loves to move Woodson around and use him in multiple roles. Tremon Williams, who was the nickel back last year and stepped in for the injured Al Harris, has been phenomenal (should make the pro-bowl, but don't know if he has the name recognition yet). He's consistently shut down whatever receiver he's assigned to, and Capers is comfortable putting him out on an island. He must be hanging around Woodson quite a bit because he's baiting QB's and jumping routes like the best of them (not that Brady will fall for that). Sam Shields is the nickel corner and has been quite the surprise, especially considering that he's only had one year at CB in college. He's an undrafted rookie from Miami and has speed to spare. He'll usually play the #2 receiver when they're in nickel, and he hasn't been exposed one bit as you'd expect a rookie corner to be. He also seems to have a little ballhawk in him as well.
Their biggest weakness is that they can be soft against the run (not if their D-line is healthy, which it hasn't been), and their linebackers can be exposed in pass coverage against the TE's.
