I'm pretty sure reading between the lines that most of the research and number crunching is done by those not proffesing to be of the anointed.
There is no reason why books and magazines can not be written by brothers or sisters.
The main criteria seems to be that the governing body simply have to intial an article to say they agree with it. Ray Franz dealt with this in his books .
Certainly none of the older members are going to spend hours reading every article written for publication, they will rely on others to do that.
The whole faithful and discreet thing is a joke as is the growing numbers who proffess to be of that class.