Isenberg's well-documented diary of the feeding frenzy gleefully perpetrated by the director, actors and anyone else in the production establishment on the innocent flesh of the playwright's baby is nothing less than ghoulish.
Didn't they like the play when they brought it there? Do they all want to be playwrights? No, they don't; because after they've created a hybrid they all walk away.
There is something to be said for everybody doing the thing they're supposed to be doing--for actors to act the part that's been given them, for directors to direct the play the playwright's given him.
Mostly the playwright would like to see the play he's written. Then, if there are truly changes to be made, at that point there is a prospect they can be seen, and the playwright can make them.