The Seahawks defense was atrocious all around last year. The team ranked near the bottom of the league in almost every major statistical category. This team is built to stop the run and pressure the opposing quarterback, and when healthy, the Seattle defensive line is very good at stopping the run.
The team has Brandon Mebane at defensive tackle clogging up the middle and has Red Bryant and Chris Clemons at defensive end. David Hawthorne and KJ Smith will man the middle, as Lofa Tatupa was released. Malcolm Smith, Matt McCoy, Aaron Curry and Leroy Hill will rotate at the outside linebacker. The linebacking unit is not necessarily improved from last year, but Hawthorne could end up being an upgrade over Tatupa and KJ Smith has potential.
The secondary struggled most of last year. The team has a decent veteran corner in Marcus Trufant, but he has struggled some over the past few seasons. Rookie Brandon Browner has excellent size for a cornerback (6'4", 220 lbs.) and he appears slated to start opposite Trufant. Safety Earl Thomas played well as a rookie, but he had a tendency to give up big plays. Kam Chancellor is a question mark at the other safety position. He could become a great run-stopper, but struggles defending the pass.
Overall, this unit has no where to go but up, and this defense should make some decent strides as they get healthy and more experienced.