Yes, that looks sensible,
Helen.
While I agree with allocating responsibility for the first post on each chapter to different people (not necessarily mods, though
), I don't think that anyone should be expected to write an essay. People can, of course, if they want to. But, if not, a summary of the major themes and issues which occur to them should suffice to get things rolling. Subsequent posters will be free to raise additional matters, of course.