Not to belabour the point, but sometimes these things become problems later, so this is a good time to talk about them.
I think somehow in the communication with witnesses we should tell people, in the most polite way we can, that it's not appropriate that they read their brief. This is where we always run into problems. People sit there and read their brief, and they invariably go over the time. We need to tell the witnesses that their brief will be circulated, that members will have it.
David, your idea about an executive summary is good. When you get into five pages, though--of course, it depends on the font--five pages is getting heavy. I don't know what the right length is, but a one- or two-page executive summary can basically form the thrust of their presentation, and the detailed brief will be available to all the members.
We really need to hammer this home, because I don't know how many meetings you've sat on where the people came and read their brief and droned on and on forever. It just drives you nuts.