To be fair 2/3s of the lineup is underwhelming right now, minus Semien, Garcia and Heim, who are performing as expected or above. Even Seager hasn't shown much power despite hitting .304
You can still keep Eovaldi on a regular start rotation and have a 6 man rotation, but given his injury history is rather him miss out on few starts throughout the season than miss 10+ due to being on the DL
You haven't really stated a list, only Hader and 3-4 relievers
Hader, another serious guy for the 7th or 8th, and other than that other internal options should suffice which includes Leclerc and Sborz, i wouldn't hate bringing in 3 serious bullpen, counting Hader,
i think he and Monty should...
They should re-sign Montgomery and explore the top FA relievers, possibly use some organizational depth to acquire someone, offseason priority needs to an elite reliever to close