Since Gallador and Azarl generally defer to Rand, it would make sense for him to lead the Forcies, and also help with his megalomania. The Psychos don't have a single decider, so they'd rotate. Likely the other three would rotate as well.
WARNING: The above post may contain sarcasm and/or sophisticated satire. Any psychological damage sustained is purely your fault.
So, as far as this is concerned, we would have three groups- Aurek, Besh, and Cresh.
On an issue, the groups would vote amongst themselves. Then, someone would be nominated 'Representative' to the group (i.e. Group Aurek would vote on whether or not we should knit sweaters for the Epireans- Galder and Dak say yay, Rianna says nay, 2-1 majority- Representative Galder submits to the rest of the group that Group Aurek votes yes on Operation Sweater Knit).
The title of Representative would rotate... that I haven't worked out in gameplay terms. Could go from episode to episode?
__________________ Yet the lies that Melkor, the mighty and accursed, Morgoth Bauglir, the Power of Terror and of Hate, sowed in the hearts of Elves and Men are a seed that does not die and cannot be destroyed; and ever and anon it sprouts anew, and will bear dark fruit even unto the latest days.
"… his name is Melkor, Lord of All, Giver of Freedeom, and he shall make you stronger than they."
Sauron to Ar-Pharazôn