Strong answer
Replace fake ROI with a proof ladder and baseline recovery plan.
- State what can be proven, what can be inferred, and what cannot be claimed yet.
- Use before-after workflow examples as directional evidence, not ROI math.
- Ask for a lightweight baseline recovery step before the next review.
- Frame the CFO summary around value signals, confidence level, and proof plan.
- Coach the champion not to overstate impact for a short-term expansion ask.