When companies first build a customer success (CS) function, the focus is usually on hiring Customer Success Managers (CSMs) and onboarding specialists. That makes sense. Early-stage businesses need people who're close to customers, solve problems quickly, and help clients get value from the product.

For a while, that structure works.

Then growth starts creating pressure in unexpected places. CSMs spend half their week delivering the same training sessions and building reports manually before every QBR. Product adoption data sits in five different systems with no consistent interpretation. Renewal risk becomes reactive instead of visible early. Internal processes drift because nobody owns them centrally.

At that point, the problem is rarely effort; most CS teams work incredibly hard. The problem is structure.

The strongest customer success functions eventually separate specialist work from frontline relationship management. They create teams focused on customer learning, data and insights, and operational execution. These functions sit behind the scenes, but they change how effectively CS can scale.

In my experience, three specialist functions matter more than most once CS starts growing:

  • Learning
  • Insights
  • CS operations

Learning teams reduce friction at scale

Learning teams exist to help customers use the product effectively and consistently.

That sounds obvious, but many businesses underestimate how much operational pressure customer education creates. In smaller CS functions, onboarding and education usually fall onto CSMs by default. Every customer asks slightly different questions, wants different training formats, or needs support at different stages of adoption.

Over time, those requests consume huge amounts of time.

A strategic CSM should spend most of their energy helping customers achieve outcomes, managing change internally, and connecting product usage to business goals. Instead, many end up repeatedly explaining the same workflows, running introductory sessions, or answering basic usage questions.

That approach doesn’t tend to scale well.

A dedicated learning function creates structure around customer education. That can include recorded video content, certification programs, onboarding guides, live training sessions, documentation libraries, customer academies, webinars, or peer communities where users help each other.