Duane Ross ran the selection process when I was lucky enough to be hired in 1990. He’s still at it. He and Teresa Gomez were our guides through the process and welcomed my colleagues once we were selected and planning our moves to Houston. Here is his take on the latest round of astronaut selections: Popular Science Q&A: How NASA Selected The 2013 Class Of Astronauts.
Good luck to the new candidates (when announced) and to future applicants and colleagues!