At what point does it make better economical sense to send a well paid project manager to oversee dozens or hundreds of engineers being paid artificially deflated local rates?

Looking at the STEM numbers, there will definitely be a glut of engineers. At least with an H-1B visa, they got a ticket to Disneyland.

https://www.forbes.com/sites/niallmccarthy/2017/02/02/the-co...