Boston loves its bats. BUT, looking at the 4 WS winners. I'll use Baseball Ref's Zone Fielding Runs and Fangraphs team Def rating
2004: BBref 13th, FG 29th
2007: BBRef 1st, FG 14th
2013: BBRef 8th, FG 18th
2018: BBRef 7th, FG 11th
2023: BBRef 23rd, FG 30th
So yeah, you can overcome this level of defensive putridity ... if you have the 2004 Red Sox offense or starting pitching. But the Red Sox for the most part were at least decent at fielding the ball on their good teams.