In addition collaborative negotiations require negotiators who are well aware of the needs of the other party. Unfortunately man by nature is very selfish. This trait makes it hard for collaborative negotiations to take place since most of the negotiators will only be looking out after their own interests. Additionally this tactic requires negotiators with a strong deal of confidence.Another disadvantage of the tactic is that it requires negotiators who perfectly understand the process. Collaborative negotiating requires people who understand what they are supposed to do or say at any one given time.