I don't call a team with a winning record taking a "nose-dive", just because the previous year they set a franchise mark for wins.
To me, a club that consistently scrapes its nose on the pavement is in worse shape.
Even if the 2023 Red Sox somehow rally and go 16-12 in September to finish with 85 wins, I'd still bet my house on the 84-win 2019 Sox in a head-to-head showdown.
The '19 Sox with Betts, Benintendi and Bradley on the bases would run wild with glee on all the misplays, overthrows, and fake hits that '23 scorers would give them. But if you want to ignore the '23 D because winning is all about bashing, then how about three guys who hit 30 HRs, 100 RBIs with a .300 BA: Bogaerts, Devers, JD. They also had three others with 20 or more dingers: Betts, Vaz, JBJ. They also had three with 100 runs scored, including Mookie, who led the MLB with 135, Raffy 129, X 110. Devers also led the majors with 90 XBHs, while Xander was second in the AL with 85.
My starting pitcher for the big game would be ERod, who won 19, lost 6, had a 3.81 ERA and threw over 200 innings. I'd like my chances knocking Bello out by the 5th or 6th and facing a tired bulk guy or DOAed waiver wire reliever before seeing Martin in the 8th. The only problem for the Hey-19s is if younger Cora brought in Barnes...