a 777 operating on this route would have three pilots on board. although the captain was disabled there was a proper cockpit crew compliment to handle the emergency. as far as how many people it takes to land an airplane. physically landing the airplane isn't the issue but rather the possibilities for something to go wrong during the crisis, prior to landing and particularely after the landing. that's aviating and distinguishes professional pilots from those are skilled solely in stick and rudder. i don't fly a 777 but the airplanes i am familiar with require certain ground equipment for autoland. the last time i was in las, a few months ago, i don't remember noting any such facilities.