| Action Step | For Acceleration Breakpoint | For Long Fade | |-------------|----------------------------|----------------| | | Rate-of-change (first derivative) of key metric | Cohort retention curves (Week 1 → Week 8) | | Review frequency | Real-time / daily | Weekly | | Countermeasure | Pre-scripted runbook for surge | Scheduled re-engagement campaign every 45 days | | Owner | Ops + Engineering | Product + Marketing |