The thing about IKF is that Cashman took on Donaldson's salary to get him. So he's invested in him, in more ways than one. I don't think he's going anywhere.
Counting on Arroyo for 140 could be a mistake, though. His history says he's injury-prone, and because he's injury-prone and hasn't played anything like a full season, he's more likely to wear down faster.
Bogey's consistent 130ish OPS+ factors in his offensive-friendly home park.
And with the balanced schedule, everyone will be facing new pitchers more.
I think he'll be fine.
Yes, the reason I say the Red Sox looked lousy at the end of 2021 comes down to their last 9 games:
0-3 vs Yankees at home horrific
1-2 vs 52-110 Orioles horrific
3-0 vs 65-97 Nats clutch/fortunate - every game was tough