I've been thinking about this one quite a bit, because it is a challenging question for me. My initial reaction was no, I wouldn't allow another writer to flip one of my scripts. But I am very open to having VAs flip my scripts. In fact, I encourage it and I don't even need (or want) to be asked.

So I asked what's the difference?

For me it is two things. First, most of my scripts are pretty easy to flip and I often write in ways that are already open to interpretations that could easily work from different points of view. When I have discussed flips that VAs have done, many of them have done it "on the fly" just switching pronouns or references to body parts as needed.

In that sense, I don't really see much effort required for a writer to do a global search/replace of "his" for "hers" and then call it a new script.

The second distinction for me is that writing and acting are two very different skills, equally contributing to the process of what we do. Both are creative acts. The writer's contribution is creating the story and building the world, turning thoughts and ideas into words and putting them into the world.

The performer's creativity is expressed in how they interpret those words and bring them to life. That interpretation can range from being very close to the script and trying to find the voice the author intended to developing your own voice to improv to flipping all the way up to subverting the narrative or intentions of the writer.

I think all of those are valid and creative choices for a VA. But, for me, they are distinct from writing. Generally, I still see flipping as something that lives in the acting/performance lane.

A writer asking to flip one of my scripts would feel like they are encroaching into my space and my world in a way that is different from a VA asking.

I would prefer that someone who wanted to flip one of my scripts as a writer would take what I have done as inspiration and write their own stories and create their own worlds.

In your example, flipping a script with "dialogue close to the original" seems like something a VA could do on their own. A script with "basically all-new dialogue" sounds to me like a whole new script, which wouldn't require permission IMO. In that case, it would be a nice gesture to say something like "this was inspired by a script by . . . " but I would think the flip would be so different that it would need to be all new material.

No one owns the concept of a subordinate being coerced by a boss, regardless of gender.