Scam Sniffer, you sound like a journo but here goes anyway. The captain slated for the flight would have remained in command. That was Richard. As far as the right seat goes, my guess is that they would have kept the FO in the seat and the other two check captains would have assumed monitoring and support roles. One of the PA's broadcast is the senior check talking, not Richard.
Richard was second on the aircraft because he bid on to it early, thats all.