the.com/handler
the human whose entire job is making someone else look competent in public.
means a person who manages, trains, or accompanies someone or something — an animal, a celebrity, a spy, a politician — to keep it on message and out of trouble.
from from middle english handlen, to touch or manage with the hands; by the 20th century it had leapt from literal hands-on control of dogs and horses to the figurative art of controlling people who technically outrank you.
secret service termagents call themselves handlers of the president, informally
espionage usea spy's handler is their only trusted contact
dog showshandlers often earn more prestige than the breeders
pr worlda good handler is invisible until something goes wrong