Yeah GOAGT was one of the first to build an operating model with low cost operatives in it. Others did before them, but they seemed to just pick the cheapest that would go on a boat while GOAGT actually built a working model around it. Like it or not, it works for them and their clients and MAST has now taken on Indians, PVI has taken on Sri Lankans and many others use combinations with Easter Europeans...
Oddly enough, one company that started with eastern Europeans seem to be one of the few who only hire Brits today. Guess it is all down to what direction the company wants to take and what their clients want...