I've already stated my opinion. I think our defense is more aggressive and better than last year. It's still not that good, though. Our run defense gives up too many first downs and big chunk plays, and our pass defense is significantly hurt by injuries. We get burned on passes, due to the fact that we stack the box for blitzes and run stops, while depending on the skills of DBs that just aren't cutting it. We have obvious injury problems in the backfield, but our front seven seems to be having issues stopping runs up the middle. For the most part, we set edges pretty solidly, and get sideline to sideline well.
I'm perfectly fine with disagreeing with you and eball. I don't claim to be an expert. I'm also not claiming we're worse or the same as last year, just that we still have room for significant improvement, especially with a struggling offense on the other side of the ball.