“This company will not be training any more pilots in the foreseeable future, since we have 400 trained pilots on our waiting list who are seeking employment.
Conclusion
There will be no shortage of personnel despite the current upswing in the aviation industry.
Evidence (since)
This company will not be training any more pilots in the foreseeable future.
We have 400 trained pilots on our waiting list who are seeking employment.
The other five major companies each have roughly the same number of trained pilots on their waiting lists.
The projected requirement of each company is for not many more than 100 additional pilots.
Evaluate
GIVEN THAT all six major companies have about 400 trained pilots on their waiting list, and each company will probably only need about 100 pilots
HOW COULD WE ARGUE THAT there will be a shortage of pilots as the aviation industry expands?
The evidence makes it seem like we have about 2400 trained pilots and will only need about 600.
So we'd either need a way to argue there aren't really 2400 trained pilots eligible for these 600 positions, or we'll need to argue there will end up being way more than 600 positions to fill.
Goal
Let's find an answer that indicates the current assumption about having enough pilots might not hold in future situations, either due to incorrect counting or unforeseen demands.