Up to 4 weeks ago, there were at least 3 type rated and current crews. Probably even more. The Chief could not possibly be flying all the last remaining JFK
flights himself while the other 2 crews (at least) were showing off Concorde for the last time in various UK and other airports. Besides, how bad could it have affected BA
's other operations to keep a few more crews current for the well earned distinction of flying the last prestigious delivery sectors?