a group of experts from various fields who serve as unofficial consultants on matters of policy and strategy. Also, Brit.,Brains Trust.
brain-trustPronunciation: (brān'trust"), [key]
to serve as a brain trust or a brain truster for: They have brain-trusted many major corporations.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.