There is talk that Fred Franz did at the Gilead Graduation in 1975-76? after it was announced about the new power structure with the Governing Body. It was available on Commentary Press site as a download. It is very informative, but Fred Franz didn't go for the idea of a governing body.
Try to clean your mind of previous beliefs and re-read Acts 15, starting in verse one. Notice that certain ones from Jerusalem came to Antioch teaching that you had to be circumcised. Acts 15:2, "This brought Paul and Barnabas into sharp dispute and debate with them. So Paul and Barnabas were appointed, along with some other believers, to go up to Jerusalem to see the apostles and elders about this question. 3 The church sent them on their way, and as they traveled through Phoenicia and Samaria, they told how the Gentiles had been converted. This news made all the believers very glad. 4 When they came to Jerusalem, they were welcomed by the church and the apostles and elders, to whom they reported everything God had done through them."
Notice that the congregation in Antioch sent Paul and Barnabas to Jerusalem to straighten out the teachings from Jerusalem. The congregations in Antioch also authorized all of the missionary trips of Paul and Barnabas. It was not a fictional governing body in Jerusalem.
After Paul's missionary Journeys he did not report to Jerusalem, he went back to Antioch and told them. In fact there are times that Paul and Barnabas went to or traveled through Jerusalem and never contacted any of the elders in the congregation.
Jehovah's Witnesses have totally warped the whole account. There is more I just don't have time at the moment. But that is a good thread.