No brief newspaper article or post can go into the depth needed to defend a theory but I do believe that the scheme that brought us 3 rings needs a reboot. That was then this is now. A very different mix of players. BB was wise in his choice of veteran FAs on defense Otis Smith, Vrable, Harrison, Bobby Hamilton, Roman Phifer, Ted Washington and fortuitous in the young upcomming players Bruschi, McGuinest (a refurb), Law and wise on draft picks, Warren, Seymour, Samuel on defense. They really fit into this scheme. Since then, the players drafted and signed via FA have not fit the scheme as well. Perhaps adherance to the scheme has made us pass on physically talented young defenders who could still star in a less analytical scheme. I certainly don't understand the technical side of NFL defenses to know the answer. My opinion is simply based on watching the steady deterioration of a once feared defense that played both bend but don't break AND big play turnover into a defense that gives up the big play and plays soft on coverage. Time to re-assess everything.