D-IFF_ident,
the throttle levers on an airbus (and i suppose on any fadec powered jet) are similar to the volume control knob on an hi-fi.with stops like 0 (idle) max vol (toga).the throttle can be easily replaced with a knob.
so with auto thrust engaged,power management is automatic and similar in both aibus&boeing.
the difference being,again i use the vol knob of a hi-fi for comparision
on old hi-fi equipt when the vol is adjusted with a remote the knob on the system also moves(some had a small led light.think 70's/80's
) :-737
and on present ones they dont:-bus
Now both 73's & bus have disconnect sw allowing the pilot to fly the a/c as conventionally as a piper cub or tigermoth