Hindsight
Burnett and Clippard have been lights out. If Zimmermann had struggled, we'd be upset that Burnett wasn't brought in
This. The team is managed so that people know their roles. Sometimes, they are pushed to see if they can battle out of their own issues to help preserve the pen and keep people in the right slots. Sometimes people are pulled early for protection. Sometimes they win; sometimes they lose; sometimes it rains. It's baseball, and the team is being managed with that in mind - part of the reason why they are still in first and likely in good shape to avoid a big fade.