A study of a few cases where US-based tech companies tried outsourcing to India and found that the negatives outweighed the benefits (NYTimes). All the companies analysed for this story had Indians at decision-making positions (CTO, Founder etc.). All found that certain types of work is best done close to the customer and the rest of the company.

The article also has input from Infosys which concurs that not everything benefits from being offshored and cites this as their reason for setting up a US subsidiary.