The 1:500 CSM: Why AI Just Detonated the Old Customer Success Math — and the Coverage Model Quietly Replacing the Relationship Manager in 2026
AI has automated the 60-70% of busywork that used to cap a CSM at a dozen accounts, and boards now treat retention as a valuation input. Here is the AI-augmented coverage model replacing the relationship-manager CSM in 2026 — and the headcount-cut trap most teams are about to fall into.