I’m not fan of the auxiliary members idea because it implies that they have already been pre-selected somehow to just wait in the wings. Depending on how the MGRC is working together (strengths and weakness) the persons who got the 6th or 7th place amount of votes on the last CAP vote may not necessarily be the best fit for the team at the time.
I would rather see the MGRC establish thier own process for dealing with COI or under-perfoming members. I had suggested earlier:
If it does come to the point of a member wanting/needing to step down, or gets kicked from the MGRC for some other major issue (COI, Ethics policy, etc…) then there should be a mechanism that prompts a new election/vote/CAP vote for whomever will replace that seat.