You come across as being pretty patronising to be quite honest mate. Taking a load of spiel from a GCSE business studies text book and applying it to the conversation we're having doesn't necessarily mean your argument is correct.
Making aircraft orders in a way where you can cap your fleet, expand and plan your fleet in a manner that allows you to decrease your fleet size insulates your airline from the many external factors that can cause a downturn in our industry. Some airlines are doing this whilst also achieving modest expansion.