The guy that brought up Dalton, got me to consider that it won't be too difficult to find another QB that can play as well as Brady did this past season. And Belichick could take Kirk Cousins, Andy Dalton-type guys to another level. I wonder if he would consider Cam Newton or Jameis Winston, both of them may be available.
As long as Belichick is there, they will be good. Maybe not dominant, but good.