Well according to Bob (love that guy and his site!!) the defense is the Unit that has improved the most. So i remain confident..
The problem last year was also that everyone and their mother knew exactly what the defense was going to do.. It might take them a year or more to excell in that type of defense, maybe we need some new players in some positions too.
I'll take that over last year any day of the week. Atleast it should be interresting to watch! :)