I always find these scenarios amusing. Boeing justify dishing out a 1970s system architecture in a 737 on cost yet somehow these guys completely change everything from the rules to the systems to the method of operating and claim that it's 'cheaper'. It's going to be cheaper and safer to pay pilots a little more than reinvent the whole wheel. It would also be cheaper if manufacturers actually built 'modern' aircraft however that doesn't ever come into the equation. A320s are 80s aeroplane and the 737 from the 60's. Some change in regulation might help too. Why do we spend so much time in the sim? Why can we cut some of that back? Especially for more experienced crews.