A loose definition of the term "Organisation" reads, "a group of people working together for a common purpose, with a structure and defined roles."
Whenever there're two individuals, there's bound to be conflict, though the extent / likelihood could vary between individuals. When there's a group of people, even if likelihood remains the same, incidence increase with the size of the group.
"Common purpose" means that everyone should be working towards the same objective. However, every individual is unique and has his/her own mind / personality which would be one of the contributing factor to conflicts.
People management thus plays an essential role to attain the common goal through a structural & systematic approach. Having being said that, being organised is important to ensure the approach used is not end up in a disaster.
As conflict being the most notorious of human nature & organisation failure, conflict management would be one of the most focused area of concern. Thus, active listening, flexibility, patience automatically come into the picture. To avoid worsening of situations, clear communication also plays a role as miscommunications / misunderstandings are a significant contribution to conflicts.
Conflicts aside, clear communication is also essential when you need to empower, guide / coach / mentor or direct in order to get everyone on the same page for efficacious outcomes. When everyone is on the same page and conflict is minimised, trust is enhanced leading to a better working dynamics.