What is the MT and the group's recommendation for measuring Quality of Hire? What collection of metrics go into it's calculation? It's a highly debated topic with seemingly no right answers.
Lou Adler's done some great work on this, and there's an interesting read by Todd Rose called "The End of Average" which talks about how every aspect of human performance is designed for the individual, except in HR. I haven't cross referenced it with your reading list, but I found it worth a read on the subject of human performance psychology.