I recently had a discussion with some friends on importance of harmony of any groups, companies or organizations in achieving its goals.
Interestingly, someone then quoted the story Chinese story of "Journey to the West" which I was not familiar with. He said that monk which is based on the Chinese monk Tsuan Chang's mission to journey to the west ie India to collect Buddhist scriptures and in the story he had 3 disciples and a horse (who is considered a disciple). The 3 disciple consisted of the "Monkey King" who is the most senior and most powerful, a pig demon and a shark demon. The monkey king who is very powerful, is sometimes disrespectful to the monk/Guru and he can be controlled by the monk by a metal headband that the Buddha Kuan Yin put on the monkey king. By chanting a mantra the monk can cause the head band to shrink and the monkey king will experience unbearable pain. Anyhow, the point is that the monkey king and the pig demon will always argue and even fight sometimes but in the end there never lose their focus on their Guru's mission to "journey to the west". In the end, there succeeded.
So the moral of the story is that to argue and fight with the intention to fulfill the mission is ok. In any organizations there are bound to be people who disagree. What is important is that there settle on these disagreement and move on to fulfill the goal. Not giving up, work against each other and have the maturity to move on towards the goal is the trait of successful people and organizations.