I would like to discuss a task similar to “The problem is known, but its business impact is not”

A possible distinction: The impact is real but mostly qualitative.

Possible first output: An impact statement, available evidence and a list of optional measurements.

I would like to check whether this first step fits our task and discuss terms for further work.

Our situation: [add details]
What we want to change: [add details]
What we have tried: [add details]