If the stars align perfectly then who knows, but a title is definitely the outcome of a good combination of circumstances, let alone four titles :
-it takes our teams to put things together at the right time and start playing solid playoff basketball / hockey / football / baseball. The Pats have being doing this five years in a row (three SB wins and two close losses in AFCCG 2016 and SBLII), while the Sox were the best team in baseball by far last year and brought their a-game all through the postseason.
-it takes some lucky / clutch moments, Benintendi having a game-saving diving catch with bases loaded, or Dee Ford negating a would-be game sealing interception with a false start.
-the matchups at every round have to be favorables.
-unless our teams prove particularly hot and dominant, the level of the top contenders has to be a little bit weaker than others years : in other words, it has to be our year and no one elses year
Considering all this, i can see both teams reaching their conference finals, but it remains to be known how high they would be able to elevate their game in 7-game series against the Raptors or the Lightning. That's where the stars would have to start aligning.