[sdiupIGPWEfh]

To me, "offshore" means acquiring developers from international shops that bid for US contracts, whereas hiring internationally just means hiring outside the country on an individual basis.

Speaking very broadly here, my impression is that those offshore development shops bidding for US contracts often don't have the greatest working conditions. Those talented enough to know their worth and find better options will do so if the opportunity presents itself, which could mean either applying for international positions on their own or immigrating to where the jobs are. Thus there's an outflow of talent away from those offshore companies.