The thing is, Cora has already tinkered with the line up several times, and not just when giving players a day of rest, so in some ways we have been successful by "tinkering," so why mess with tinkering?
BTW, I'm totally fine with whatever Cora does. I may scratch my head a few times, and voice a different opinion, but to me Cora & Bloom are just what we need and are doing a fabulous job.
Arroyo has led off 2 of 18 games.
We've had 3 hitters slotted in the 2 slot, but Verdugo in 16 of 18.
3 slot: JD in 16/Bogey in 2
4 slot: Bogey 14, Devers 3, Vaz 1
5 slot: Devers 12, Vaz 5, Marwin 1
The rest has been a near free-for-all, which is often the case for all teams:
6: Marwin 8, Vaz 5, Renfroe 4, Arroyo 1
7: Renfroe 5, Arroyo 5, Marwin 5, Vaz 2, Dalbec 1
8: Dalbec 7, Cordero 6, Vaz & Arroyo 1
9: Plawecki 7, Dalbec 5, Cordero 5, Arroyo 1
Yes, many of the top 5 slots were shuffled due to a player being rested, but not all of them.
Most good managers tinker a little bit and make a major switch, when needed- usually not after just an 18 game stretch and while the player in question seems to be improving.