Check out Coroflot's survey of what it takes to hire design managers, interactive designers, interior designers, architects, etc. At the "high end," it costs about $200,000 to get the best in-house corporate design manager or outside consultant (not sure how they got to that latter figure).
Their numbers show you can get the best for half that in Canada but it costs $150,000 for the best in Brazil. China? Only $70,000. England? Even less-$45,000. Can this be correct? India, back up to $150,000. OK. I give up. Coroflot, how did you come to these numbers?