This was an interesting passage of questioning.
AS used the word "disciples" in the sense of a small, select band of chosen ones. He should have said something along the lines of "modern day equivalent of the 12 apostles". GJ picked up on this right away and came back with a generalism based around a wider sense of the word and that every Christian is seeking to be a disciple.
This then meant that further questioning were not specific enough to force GJ into a binary response about the status of the GB as the one and only spokesperson that Witnesses must follow.
I thought AS had missed a trick here but the wishy washy nature of the documented responses by GJ actually allow responses to the loyalty question such as the one proposed by problemaddict2.
I know the whole thing is preposterous but when trying to avoid being done up like a kipper by elders then theocratic warfare goes both ways...