Um, I'm maybe an innocent bystander here, but perhaps the following works?
a) renaming of the root portion of the file-name is permitted, nay 
encouraged, to identify whether the draft is currently individual, or 
owned by a group (or even to select a 'better' name for other 
reasons);
b) the revision number is NOT reset when the name is otherwise changed;
c) all drafts must include a revision history including the full name 
under which each draft was presented.
This makes clear the current status, the prior status, whether the 
draft is new (-00) or not, and enables the other obvious rules.  IETF 
secretariat and others can clearly see when a draft is new or not, 
and everyone can (we hope) see who 'owns' the draft and its rough 
subject from the file name.
--
David Singer
Apple Computer/QuickTime
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