The creativity can really come from the defensive ends and linebackers. Chandler and Nink are comfortable dropping in coverage and can essentially play like linebackers at times, so using them outside of their normal edge setting/edge rushing responsibilities is where they can play around a bit.
I think Jamie Collins is a great piece because he has great size and athleticism to be a factor in a number of ways. Is he in coverage? Is he blitzing? It will be tough for quarterbacks to discern that pre-snap. And Mayo/Hightower are no slouches when it comes to blitzing as well.
So it comes down to, on passing downs, mixing up which of that group is coming or covering. Really “blitzing” could be defined as when someone from the secondary is sent and I think Arrington and Ryan are both really good at that. They’ll come flying in a couple times each game, with Nink/Chandler dropping to cover the short zone for them.
But without blitzing (in the sending more than four sense of it) you can do some creative stuff with sending linebackers and dropping defensive ends, especially given how versatile the Pats’ players at those positions are.
