User blog comment:Blackendedsoul/The Authority of Admirals/@comment-5962458-20130706125130

As we saw at the meeting at marineford where the replacement of Crocodile would be decided there was no WG representative in the whole proccess.Only marine officers and the other sichibukai.Therefore i believe the Sichibukai are directly chosen by the marine higherups and those are the ones who can also revoke their status obviously to me.