"Problems like this are endemic to zero-sum schemes like stack ranking." Stack ranking is nothing more than a more aggressive form of regular hiring promotion

"Problems like this are endemic to zero-sum schemes like stack ranking." Stack ranking is nothing more than a more aggressive form of regular hiring promotion and advancement. Moreover, it's just as likely that female managers prefer females. There's nothing inherently sexist about 'stack ranking' - rather, possible sexism is derived during performance reviews - which are commonplace.