On a big scale the idea of training to be a cpl, then CFI then you staying on as a CFI at the school comes across as a pyramyd scheme.
How do the numbers stack up? Over 1500h how many cpls would a CFI train who then turn into cfis themselves who in turn train X amount of cpls aiming to be cfis?
Just saying the pilot shortage problem will rear its head again but in a different form. That form will be an oversupply of cfis in the system with low or no students.