Where is this coming from? We've seen Cora change batting orders regularly throughout his tenure with the Sox. And calling the 4th spot "clean-up" is not supported by statistical evidence. Your best hitters should bat 1st, 2d, or 3d. And the 5th and 6th slots are almost as important as the 4th.
Also, as others have pointed out, after Devers, Dugo, and Turner, the Sox lineup could be called, "the return of the Mendoza syndrome" because Kike's hitting, .175, Casas .146, Refsnyder .211, Yoshida .186, Arroyo .160, and Wong . 156. McGuire is hitting a solid .385, but Wong has played in 3 more games and has 6 more at bats because he's better defensively. In fact, right now Wong leads MLB in catcher DWAR with +0.5.