From what I've seen from the outside, it looks like US companies focus on what they view as "non-core" departments to reach their overall diversity goals. So,

From what I've seen from the outside, it looks like US companies focus on what they view as "non-core" departments to reach their overall diversity goals. So, for example, in a software company, the coders might largely be of one or two ethnicities, and then the company's diversity goals are met by hiring diverse candidates in, say, HR, legal, payroll, etc.