Nominations can be made by one person on behalf of another, or by the individual themselves. Either way is perfectly acceptable.
The nominating process focuses less on individual's skills and accomplishments (ok, a little bit on this) and more on how the gifts of the individual fit the needs of the Network at that specific time.
August 24, 2018 Nominations Open
September 20, 2018: Nominations Close; Nominating Committee begins its work
September 27-29, 2018: Nominating Committee presents its slate of final nominees to the Board for approval or to return to the committee for more work.
Week of October 1, 2018: Nominees are notified
January 24-25, 2019: Selected nominees attend board meeting as non-voting member
January 28, 2019: Selected nominees new term begins.