Just a point of fact:
You need to read it all. Regular candidates serve a 2 or 3 year
appointment. Mid-term vacancy fillers serve between 1 to three years
depending on when the vacancy occurs. AFAIK we've never made a normal
vacancy 1 year appointment.
We did it on the IESG when we created the RAI area in 2006: Jon
Peterson was appointed RAI AD for a one-year term, and Lars Eggert was
give a one-year term in TSV to fill the mid-term vacancy.
We did it on the IAB when we appointed Eliot Lear for a second
one-year term in 2014 (his first one-year term was to fill the
mid-term vacancy created when Jari became IETF Chair in 2013).
Barry