Exactly, seems to me that any other way is too damn complicated.
KISS method.
Noodle or 737Jock haven't answered my question regarding:--
1/ Unreliable Airspeed checklist in the QRH containing Pitch and Thrust tables for Approach.
2/ Flying the BUSS on the Airbus is taught BY Airbus to hold a constant Pitch and Adjust Thrust to stay "in the green" ( correct AOA and therefore IAS for the Config )