Your question is Find Best Use Case for New Product. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
You are working on a product that already has an established customer base, and the team wants to launch a new product into that account base. There are several plausible use cases, but not enough room to pursue all of them at once. You have been asked to decide which use case is the best starting point.
How would you identify the best use case for a new product in an existing customer base?