Understanding the Role
What Does a Chief of Staff Do?
A Chief of Staff extends an executive's reach: they run the operating cadence, drive cross-functional projects, and make sure decisions actually happen. Here is what the job looks like in practice.
The one-line definition
A Chief of Staff (CoS) is a force multiplier for an executive. They take on the coordination, synthesis, and follow-through work that the executive cannot scale, so the executive can spend time where only they add value.
The four buckets of work
Most Chief of Staff work falls into four buckets. The mix varies by company, but every effective CoS touches all four.
- Operating cadence: running the weekly leadership meeting, business reviews, planning cycles, and offsites.
- Special projects: owning cross-functional initiatives that have no natural single owner, from pricing changes to reorganizations.
- Communication: turning the executive's intent into clear written narratives, board updates, and all-hands content.
- Decision support: gathering context, framing options, and tracking decisions through to execution.
What the role is not
A Chief of Staff is not an executive assistant: the EA owns the calendar and logistics, the CoS owns substance and follow-through. A CoS is also not a shadow executive; they carry the principal's authority on process, not on strategy calls the principal has not made.
How success is measured
The clearest signal is executive leverage: decisions close faster, meetings produce owners and dates, and nothing the principal delegates gets dropped. If the leadership team says the operating rhythm feels lighter but tighter, the CoS is doing the job.