User blog comment:Blackendedsoul/The Authority of Admirals/@comment-1595565-20130705234556/@comment-3425840-20130706001117

Question, if the Marines indeed decides then why are they said to be acting directly under the WG?

Your Arabasta case is flawed, Tashigi just announced the official decision of the higher ups. If a random Marine could revoke titles, why did not Smoker revoke Law's title at PH?

Imo ordinary Marines themselves can not revoke Warlords. Perhaps Fujitora had gotten the authority from the WG before embarking on his mission or an Admiral being a very high rank has enough influence within the WG (as Marines are but a part of WG) to make such a decision.