Typical question from someone in the dark ages.
Surley it is obvious why a 3rd man is required
Mind you it must be difficult working for the smallest handling agent at LJLA especially when you have had a taste of working for the largest one who obviously being bigger and better can afford to employ quality staff.
P.s. A third man is required to warn all airport users when cumberland is about to do a push or to grass him up to the marshaller when he is putting a belt on an aircraft without a banksman
UP THE REVOLUTION