Here it is in all simplicity...
A very tight alliance...it could be Syd, Amy, and me. It could be us three and T, Kway... Whatever form, it is truly a ride to the end, unless completely taken out. We can, out in the open, set up a number of alternative final three in case some are taken out later. But we keep tight in voting.
To protect this alliance, we develop a non-aggression pact with another alliance. No going after each other until the floaters are gone. If both have someone on the block, vote your primary alliance. We can call this a LIEMANCE, relationship based on cheating at the end...but gets us to the end.