I'm not from the US but there is a link between socioeconomic status and education. I would assume that with the large percentage of minorities, especially black Americans, raised in poverty that there would be a lack of suitable candidates. Just one of the ways that history of racism affects the modern world.

Do they have any practical suggestions on where to find a huge number of suitable qualified people? The people in prestigious academic positions often come from not just non-poverty backgrounds but wealthy backgrounds.