I have opinions about Dave's question, and about what's appeared in this thread so far, but if I might up-level a bit ...
Soon after he was named GEN AD the first time, Some Guy Named Russ asked all of the past Nomcom chairs if they would be willing to form a "design team" and talk about their experiences. Almost all said yes. The participants were:
o 2006-2007 Andrew Lange
o 2005-2006 Ralph Droms
o 2004-2005 Danny McPherson
o 2003-2004 Richard Draves
o 2002-2003 Phil Roberts
o 2001-2002 Theodore Ts'o
o 2000-2001 Bernard Aboba
o 1999-2000 Avri Doria
o 1998-1999 Donald Eastlake 3rd
o 1997-1998 Michael St. Johns
o 1996-1997 Geoff Huston
o 1993-1994 Fred Baker
The collective experiences of the "design team" was collected into http://tools.ietf.org/html/draft-dawkins-nomcom-3777-issues-00, and resulted in several revisions to RFC 3777 (that were later folded into https://tools.ietf.org/html/rfc7437).
I really wish we would consider forming something like that group of recent past Nomcom chairs, so that when someone pops up with suggestions for the way we select, unselect, and provide community feedback to people reviewed by Nomcom, we could take advantage of that considerable experience in evaluating it.
Spencer, speaking as the scribe for the previous Nomcom chairs design team, who learned a heck of a lot from that experience