That's an option, but it takes a long time to train and recruit locally, costs a lot of money, and you'll probably have to increase salaries to get the required numbers. If there were an easy and cheap way to recruit all the required staff locally, that would already be happening.
So the solution is to import uneducated and non-certified individuals from other countries at lower pay and hope you can pay them less and teach them? As if that is any easier? Sounds like the only reason is so health conglomerates can provide lower pay.