Making changes to sections of the RIF Use Cases and Requirements Document: what is the procedure?

The consensus seems to be that the decision support section of the 
document needs to be substantially altered. This section was taken, with 
minor modification, from the narrative section of the use case that I 
edited, so I assume I'm the    responsible party for making these changes.

How exactly should I proceed? I propose editing the original decision 
support use case at http://www.w3.org/2005/rules/wg/wiki/Decision_Support 
and then informing Allen Ginsberg and David Hirtle, so that they can then 
make the necessary changes to the larger document. If there are any 
objections to this suggestion, please let me know.

What would be the time frame for making these changes?

Thanks,
Leora