Notably contains an article on "The Faithful Steward and it's Governing Body". Only skimmed over the account , but it seems to cover a number of bases - eg
Anointed individuals are not to think they are above "God's channel"
Paul & Barnabus got their authority from the GB.
Although the cong judges , it is actually the elders who represent them.
Unusually it references Lukes account about the "faithful steward" which the WTS rarely links with Mt 24:45 (to the extent that there are no cross references in the NWT from Matthew).