SEATTLE — The Pete Carroll-led Seahawks, as fans painfully know, were 1 yard from going back-to-back. What’s less talked about is that the Pete Carroll-led Seahawks — on defense, at least — were built back-to-front. In other words, those Seattle teams tried to stack the secondary with Pro Bowl talent and build the rest of the “D” around the defensive backs. Richard Sherman, Earl Thomas and Kam Chancellor come to mind — but trades for safeties Quandre Diggs and Jamal Adams seemed to cement that philosophy. But as free agency looms and with the draft less than three months away, it’s time to won…