Approach is flown in a lateral and vertical profile but also at certain speed. It's not enough to only manage the profiles. In Bangalore A320 crash static thrust levers with no tactile feed back approach was flown at Vapp-27 kts. alpha floor at 135ft simultaneous TOGA selected but crashed as engines were spooling up toTOGA thrust. In SFO moving throttles (which were at idle through out) plenty of feed back the approach was flown at Vapp-30kts. aircraft crashed during late goaround attempt. Whether it's A or B you cannot fly an approach without frequent glances at your speed. If it's not what it should be then get it there yourself.