Really good read from Doug Kyed and I very much agree with him. And I don’t think the Pats are really that far off. After this season, they have developed some new guys on the defensive line and everyone will be a whole lot better with more of a rotation.
The biggest difference I see is in the secondaries, where the Seahawks have a collection of big corners and safeties with Earl Thomas being an elite back end defender. Put it this way, Dennard, Arrington and Gregory would not fit in Seattle.