I would like to discuss a task similar to “Separate responsibilities. One shared launch.”

A possible distinction: There are separate plans, but no shared one.

Possible first output: A shared launch plan with readiness conditions and owners on both sides.

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]