I emailed Jeff and Miles' mom, Amy, later to set up the phone interview. And then during our next class we practiced how the interview would go and what types of questions he'd ask Jeff.
From what Miles told me, the interview went really well! Amy texted me a picture of Miles after the interview:
A little excited!
So excited he got to talk to such a great author! Jeff is a humble, great guy. The kicker is...he still even has a day job!