Observation from the sidelines here:

People always start training when the market is good while they should start training when the market is bad as you have about a 5-7 year lead time.

Its a very basic economic principle and you see this in markets like pork and agave.
But it always means there’s a surplus at the end of the good wave prior to the market tanking.

Aka you need to be in the first hiring wave after a recession not in the last one just prior.
Mahalo.