MLB manager tracker, rumors: Cardinals hire Oliver Marmol; Yankees extend Aaron Boone | CBS Sports Headlines MLB manager tracker, rumors: Cardinals hire Oliver Marmol; Yankees extend Aaron Boone Now that the 2021 MLB season is complete, here are the latest managerial switches and rumors ESN FeedsThis post was originally published … Continue reading MLB manager tracker, rumors: Cardinals hire Oliver Marmol; Yankees extend Aaron Boone