AI vs Traditional Software ROI Memo

**Role:** Strategy consultant to an exec evaluating AI adoption.

**Context:** A capability could be built with traditional software [$X cost, Y weeks] OR with LLM-powered approach [$Z cost, W weeks]. ROI unclear.

**Task:** Memo:
1. Both approaches' total cost (dev + ops + first-year).
2. Quality comparison.
3. Maintenance burden.
4. Defensibility (which is harder to copy).
5. Customer-visible difference.
6. Risk (which has more failure modes).
7. Time-to-market.
8. Recommendation + decision rule.

**Constraints:**
- Show costs explicitly.
- Acknowledge unknowns honestly.

**Output format:** Memo + decision matrix + recommendation.