Well you always want more pressure, it’s just a question of how aggressive you want to be and how many guys you’re willing to send. I think BB’s philosophy is generally conservative on defense and against mobile quarterbacks he’s fine only sending four guys and ensuring their main priority is to not lose contain. Ideally the pass rusher who gets blocked 1-on-1 has to win and get some disruption without letting the QB sneak out of the pocket.
I think BB’s methods of defense often boil down to saying an opposing quarterback can’t play sixty minutes of error-free football consistently throwing against seven-plus guys in coverage. Will they make some throws and put together some scoring drives? Sure, but the Pats try to keep everything underneath, be solid with their tackling and just wait to pounce on a bad throw.
For as bad as the Patriots defense has been over the last four seasons (better at some times, worse at others) it usually just boils down to turnovers for them. Even when they give up a ton of yards, it would be the turnovers that made the biggest impact and usually gave the Pats a win.
But you look at every playoff loss since 2010 and they’ve gotten a grand total of zero turnovers.