That happens all the time. I went through several government contracts where a company would come and under bid the current contract by a significant amount, win the bid, offer the current contractors 3/4 of what they were being paid and fill in the rest with new hires. There is no continuity between contracts so unless a bunch of the old contractors took a pay cut to stay on they would come in and start from scratch with all new processes and procedures and absolutely slow down productivity for all those they were supposed to be providing support.