1. Bellinger has limited trade value, like Bertz said no team is going to give up significant value to get a partial season of Bellinger at 27 million that becomes 2.5 years only if he underperforms.
2. The alternatives are not ready to replace his productivity. PCA has the same wRC+ as Madrigal, Caissie has zero MLB PA.
3. Even if some of the alternatives were ready, it's a false choice. Injuries, rest, and optimizing matchups mean that there's no actual surplus or problem that needs to be solved with a Bellinger trade. This is doubly true when Bellinger is a good defender at 3 different spots and multiple options around RF and 1B are uncertain defenders that can play DH(Busch, Suzuki). We need to stop thinking about team building as 9 main characters that make up the lineup and the moment you have 4 guys for 3 spots that's an issue requiring changes.