One point that kinda bothered me though was this:
Two things set the top quintile apart: people in the top quintile are much more likely to have finished college, and they are much more likely to be in married, two-earner families. We can move more people up the ladder by doing two things: one, by helping more students graduate from college, and two, by supporting two-earner families in balancing work and family. This means such things as broad-based tuition tax relief, paid family leave, and more tax breaks for child care costs.
He assumes that finishing college is the important part. I beg to differ. College doesn't really provide you with any, you know, actual skills. The attribute that matters in seperating those that finish college and those that don't is intelligence, a drive to succeed and a good work ethic. I think that these traits are going to be far more prevalent in the top quintile than a college degree.
HatTip: Greg Mankiw