Thanks Lakey. But the question posed an omitted which is the hardest outpoint to spot. I think I read it somewhere RVY asked the same question. Hubbard was keen on hat write-up's. Why didn't hubbard leave one? For real and not conjecture.
I brought this question up to C.O. when I first made contact with him in 2007. He responded with something that at least partially answers your question. He pointed out that the Green on White Management volumes contained the Hat Write Ups for all admin posts while the Red on White Tech volumes did the same for all tech posts. Thus these volumes precluded the necessity for Hubbard to write individual hat write ups for all of his hats.
There is merit in his comments but they don't handle the question in full. Hat Write Ups had a specific form. There were items A to I, or was it A to J, either 9 or 10 items having to do with key elements of a post. The Purpose, Product and Ideal Scene of a post were listed first, the stats associated with the post were named, There was an item which covered that posts position on the Org Board and showed the post's "awareness characteristics". The item which I remember best is a diagram of the flow lines of the post. A circle would be drawn on a page and all other posts this post interacted with would be shown without inward or outward pointing arrows representing inflow and outflow.
I arrived on the Apollo in October, 1973, Hubbard was aboard and I believed that with him there each and every post would have a perfect Hat Write Up for it. As it turned out, I was assigned to 2 posts, one of them a high executive post, and neither post had a Hat Write Up, not even one sheet of paper. I was given the command, Start!, having no hatting for my post and no Hat Write Up. The Apollo in 1973 was in total COPE mode. Hubbard made no push to insure Hat Write Ups existed for each post!!
Getting into your original question, Hubbard seemed to start doing hat turn overs by appointing Mayo to handle Tech upon his imminent death. Appointing Bill Franks ED Int was another move in this direction but then things just stopped cold in 1982. Hubbard is known to have had a stroke in 1982 and was incapacitated for awhile. That probably stopped him from more appointments in '82. In '83 he could have worked on hat turnovers but choose not to do so. After a time, he was out of the loop, with the organization and all communications to and from him being monitored by DM. Perhaps he did do some hat write ups and DM stopped them from going through but I don't think that is what happened. Instead of hat write ups, he instead issued endless "Advices" to management having to do with local situations at INT. These "Advices" were organized into large files and were not shared with staff or public; only DM and some of his top aides were allowed to see them.
Thus a hidden data line, which was never supposed to exist in Scientology, was formed. Since these "Advices" were dated later than any policies or tech bulletins which Hubbard wrote, DM used this fact to decide that the"Advice" was senior to Policy whenever a Policy and an "Advice" conflicted. Advices were only intended by Hubbard to handle existing local conditions while Policy was supposed to broadly delineate how C of S was to carry out it's business. DM saw it differently and deemed that the advices were senior.
DM also made the decision that the Advices would not be shown to rank and file staff nor to the public.
Those two decisions set the course for how C of S would be run. The public and staff were told there was "no hidden data line" but one now existed. Loyal staff would constantly cite Policy and DM would over rule them. If they persisted, they would be dealt with harshly, RPFed, etc. DM didn't feel that he had to explain anything to them. They were his juniors and expected to follow his orders without question, and if they questioned anything, for any reason, the were either "rehabilitated" or declared SP and kicked out.
Meanwhile, Hubbard, in a deteriorating state, both physically and mentally, was busy writing "advices" for management, never dreaming that those "advices" were being considered senior to policy nor realizing that they were being made into a hidden data line. By '84, '85, he was in no condition to write up all his hats and probably was no longer all that concerned about how the C of S would operate after he died. He probably felt that he had done everything he could to insure that scientology would survive his death, so he turned his administrative affairs over to the Broekers, and let the chips fall as they may as far as hat turnover's went. He probably figured that the most "causative" person would become his assistant and it was best if he just allowed others to fight it out. One thing he failed to consider was the ethics level of the most causative person.
Lakey