This year isn't that much different then past years in the way of Packer Defense. I mean really when was the last year that the Packers had a truly consistent dominant defense? The difference this year is that we don't have a dominant offense. One that puts enough points on the board to cover an average defense, one that keeps the defense off the field long enough to keep them rested and not give opposing offenses a lot of possessions.
Again I will say it, I just don't think our defense is going to improve drastically this year, it is what it is with the limited talent it has. Where we will either survive or die is with our offense. There is a lot of room for improvement and the talent to improve. So like so many years prior, we are going to win or lose by what our offense can do (or not do).