Meh. Were I Cora, I would stick with Eovaldi, Whitlock, Taylor, and Ottavino. If long relief is needed, use Pivetta and save Houck for tomorrow. If it's extra innings, however, Houck might be needed.
Brasier's ERA is 9. That he has 4 holds shows how stupid that stat is. Robles' ERA is 5. Sawamura's is 4.5. None can be relied upon in a tight game for high stakes. So no way do I see them pitching tonight unless the game is a runaway or Cora runs out of arms in extra innings. FWIW, I am more than happy to say I have seen all three of them pitch extremely well this year--as have we all. So you are absolutely right that overall the bullpen has been a vital cog in this remarkable season.