I think the easiest solution is just to outsource parts of the work to active, willing members. Most of Sol's issues (and mine as well) are quality control, e.g. proofreading, BBC, inaccuracies, etc, so that's why I made that suggestion. If the root of that problem is that NLWs are crunched for time, then there needs to be more of a push for other work to be outsourced.
imo, a good process would be this:
-NLWs find contributors as soon as possible, and work on the rest themselves over the course of the month
-contributors work on a given section, sending them to NLWs
-NLWs add the contributed sections into the newsletter, revising them to be up to date, checking all the sections for quality, and preparing the NL to be posted
-a contributor runs through the whole (otherwise final) newsletter for quality, making any changes and sending it back to NLWs
Additionally, Council probably still has access to the NLW subforum, so they should be encouraged to chip in to any of the above steps.