It all comes down to the OL now. Specifically...good health and the center position. They have become one of the best running teams in the NFL. One of the best play-action teams. Brady is still slinging it with the best of them. And they just added the best receiver in the NFL who now has something major to prove. Oh, and their defense, which by season's end was one of the best in the NFL...got BETTER.
AND...they're incredibly deep at most every position: DB, LB, DL, WR, RB...the OL, TE, and QB spots aren't super deep but otherwise...they're just loaded everywhere.
Safe to say that when everyone is healthy and up to speed (it will take Brown a few weeks to learn the playbook most likely, which will coincide nicely with Watson's return), that this is the most talented Pats roster ever?