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.
October 11, 2021; Nominations Open
November 10, 2021: Nominations Close; Nominating Committee begins its work
Late November, 2020: Nominees are notified
February 6, 2022: Selected nominees new term begins.