That defense is young with some good players, and the addition of not only Adams but also their draft additions of Brooks to their LB corps and two young ends in Taylor and Robinson should help them regain a defensive ranking closer to what Pete Carroll needs (they were 19th in points allowed last season). They're not going do anything in the playoffs without a top 10 defense IMO. Are they gonna jump that high? Hard to say but their roster looks a LOT better right now.