6 is not excessive. 9 in 2023 is 2-3, too many. Plus, he started 2 games at DH. If a guy is hurt, I'm fine with as many days off as it takes.
I'm not going batty, nor do I think others are over this, but I do disagree with giving a 26 year old nine days off, plus two at DH, above the scheduled days off. What irked me the most is that he seemed to schedule these "rest days" way in advance, with no regard to who was hot or what handed pitchers was going the day of rest.
Devers was "rested" 9 days, but only 6 were vs a LHP. We faced 42 LH's SP'ers. It's not like Devers has horrible splits, but Cora did the same to players who do. It's that part that bugs me more than the total days off.
Now, to the total games started at a non DH position:
149 Devers
135 Dugo
115 Casas
105 Wong
84 Yoshida
82 Duran
79 Duvall
Most of these guys had injuries, really bad splits or DH'd a bit, so it's hard to read into "rest days" for any of them, but I don't think anyone came close to be tired out by excessive starts in the field.