That just gives them power to continue Instead, expose them. When they snipe at someone, be direct and ask them for their opinions or solutions. Force them into the open and you will weaken their ability to cause problems. Try to turn their attention and comments to the issues, not the personalities involved. Once they realize you won't put up with their sniping, they will stop.
Victims see everything negatively.
They complain, whine, seem to be powerless, and act defeated. Victims also shift blame and refuse to take responsibility for situations or decisions, especially unpopular ones. Such behavior hurts morale and erodes the support of your team. Since victims often believe no one thinks they are important or takes them seriously, start your interactions by listening to what they say. Steer them toward the facts, which are usually much less negative than their interpretations.