What happened: Baltimore tabbed Jared Banner as general manager to work with Mike Elias. The Athletics elevated Taylor Smith to president of baseball operations.

Why it matters: Both clubs are resetting their decision-making chains at the start of the offseason. The structure in each city will shape winter trade calls, free-agent pursuits and draft preparation.

What to watch: Introductory availabilities and subsequent staff hires will clarify day-to-day responsibilities. The winter meetings will show how each setup operates.