The Yankees were in the WS last season and lost Soto, but got Fried, Goldschmidt, Bellinger, Devin Williams, Pablo Reyes and Colten Brewer. Unless there's an injury to Fried, there shouldn't be much of a falloff as that rotation is very good and much better than the Sox.
Yanks: 48.8 fWAR
Sox: 41.3 + 4.1 (Bregman) + 1.0 (Scott) = 46.4 fWAR still behind the Yanks