Back in 2011, time and money were of the essence for Boeing. As Airbus came out with the A320neo, Boeing’s management made the decision to act fast and, for competitive reasons, simplistically. Instead of developing a new narrow-body that would have competed with the re-engined Airbus A320, the American manufacturer decided to follow in Airbus‘ footsteps and also slap on new engines on their star, the 737. Yet times changed, as safety requirements and systems did so as well. But for the 737 MAX to stay competitive, Boeing decided to introduce minimal changes to the aircraft.