It always amused me that he ended up a Phantom Sim Boss having never flown the F4 !
That was quite common in the RAF. In FJs, the OiC Sim was an old guy, perhaps grounded, and the other sim instructors were often younger re-roled crew before a FJ OCU. Also ROs were used, often with no experience on the jet. Basically, sim instructor was not considered a glamorous job and there were not enough experienced FJ hands to be permanently posted into these positions.