The short answer
Mostly three things: keep the systems of record honest, make the process the team follows visible, and answer the questions leadership asks with numbers nobody argues about. In practice that looks like fixing CRM fields and automations, defining what each pipeline stage means, routing leads to the right rep, building the dashboards the weekly meeting runs on, and running quota and territory math. The unglamorous truth is that a large chunk of the week is data cleanup and unblocking reps who are stuck in a tool. If you want a single sentence for it, RevOps owns the plumbing that lets marketing, sales, and customer success operate off one version of reality.