[lusr]

"Greg Smith is resigning today as a Goldman Sachs executive director and head of the firm’s United States equity derivatives business in Europe, the Middle East and Africa."

I could be wrong, but I don't think the number of positions heading business units across continents is that large.

[gaius]

There are an awful lot of Head Of X positions too. Often these have no-one reporting to them directly - they are more analogous to project managers.