- Why?
- How?
- Have you considered A...B...C...etc.?
- If I said I believe you might have under-invested to achieve this outcome in the past, what would you say?
- What will the impact be if you did this?
- What will happen if you don’t act?
- What’s possible?
- How do you know that?
- What do you think is missing?
- The follow-up question(s).