CEO
What does entry cost? What does it unlock? Entry floor = the business case moment.
CFO
Day 1 spend estimate per tier. Enterprise entry is expensive. Sovereign entry is $0 + time.
CTO
Architecture decision: which tier is the ceiling? Pick the right one before day 1.
CISO
Day 1 security posture. Sovereign tier has the best security story. Legacy has the worst.
CPO
Platform entry = product capability unlock. Cloud tier enables scale. Sovereign enables freedom.
CHRO
Team skills per tier. Enterprise needs VMware/SAP admins. Sovereign needs k8s + GitOps.