Regrettably, the author does not define "diversity in culture."  That is far too often interpreted as hiring visible minorities and women as "diversity" and hence a bean counting exercise.  Such practices reinforce the status quo once hiring quotas are met, and "diversity" hires are often paraded around like show ponies on display.  It's sad, but those in the know truly 'get' the game being played, and participate compliantly in the pacification.

A true 'diverse' workforce comes from diversity in thought.  Diverse thinking can come from any brain, not just the brains of visible minorities and females.