Do Talzin lead first, then Ventress unique (her zeta leadership ability is AWESOME in the that bleeping sith raid) then Daka, then Talzin's unique. Talzin zeta lead makes them semi-viable and then adding the other Zetas will increase that viability. That's what I did at least.
Also ditch Ghost and add in Acolyte because Acolyte + Zombie = safety blanket in Talzin zeta lead because it's for just incase you lose the other 3 early on, you can eventually revive them all.
Edit: My Ally code is 124-462-271 if you want to see my Nightsister squad (they are my current arena team and work amazingly well)
