It's not evident in their raw numbers. The defense as a whole ranks ninth in points allowed per game with 19.6 and fifth in yards per game with 306.8. Against the run, the Seahawks are giving up just 92.6 yards per game, seventh in the league, while the pass defense ranks seventh, giving up 214.2 yards per game.
Where the Seahawks struggles can be reflected are in advanced analytics. Football Outsiders' DVOA metric, which measures snap-by-snap efficiency, ranks the Seahawks defense 12th overall and 17th against the pass. Out of 28 teams last week, they ranked 17th in pass defense DVOA.