Of the 21 angels The One created, 7 rebelled. Rather than sending the other 14 against the 7, which would ensure victory, he only assigned 7 of them for fighting, and the other 7 were angels of neutrality. There are good reasons for doing that.
What I am trying to say is both Cassiel and Basium, and everything in between, are needed to counter evil. They would continue to do their own thing, not seeing the bigger picture, blaming the other for doing the "wrong" thing... and perhaps this was the intention of The One in the first place?
A question I asked a few times on these forums already, but I still don't understand, is this: if Bhall rebelled, why do the followers of Junil still wield fire like they did in the Age of Magic?