The church can be revived because the realization of the old churches were built upon older ruins of ancient pagan temples from the period of the hellenists so bringing back a church from the past can be realized as the truth.
No, Orthodox churches are where persons of Greek or Russian Orthodox faith worship. Like the Church of England, the Orthodox also separated from the Roman Catholic Church on matters of doctrine.
Well, in some churches the secretary does make an agenda for the church programs. Some do not. It really is just a matter of what the terms of employment are.