Enlarge / Leslie Miley, center, is the head of engineering at Slack. Nancy Lee, third from left, is Google’s head of diversity. (credit: Cyrus Farivar)

MOUNTAIN VIEW, Calif.—It’s one thing to say that Silicon Valley needs to do better in terms of diversity hiring. It’s another thing to do so literally down the street from Google headquarters and to display disappointing diversity numbers above the heads of executives from two big companies, PayPal and Google.

But during a Wednesday conference entitled “Inclusion in Silicon Valley,” hosted by The Atlantic magazine at the Computer History Museum, there weren’t many firm commitments by those companies about what they would do, beyond what they’ve already done, to change their corporate cultures.

Leslie Miley, the director of engineering at Slack, reminded Nancy Lee, a Google vice president and head of diversity, that Google could be doing more.