On a slam-dunk type of visual approach especially, when the work load is high, why not turn all that stuff off? If one guy is concentrating on slowing down and getting down, why should the other guy have to be messing with the MCP panel so that the flight director looks pretty and the autothrottles are in the right mode? You end up with too many eyeballs looking inside rather than outside. Once established and stabilized, you can then bring the goodies back on line if you want to. By this time, the other guy won't need a third hand to assist.
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