Difficult to work in a team, take the responsibility and work individually

Most of the activities we need to work in groups and groups have lots of conflict because individuals have different expectations in the team. Other reasons of the conflicts are no proper work division. If the work is divided at randomly, without giving proper thought to the final result then when the individuals come back with their work that work is not compatible with the other’s work. Because everyone has put his/her effort in working, they don’t want to change their part and that become adamant. They keep finding problems with others work and suggesting them to modify their work. And it becomes the point of breaking the team. As the team becomes bigger, chances of conflict also become higher. I think optimum size of team is 4-5 to avoid bigger problems.
One of the easiest ways to solve these problems is to take the responsibility of whole work. Believe me, most of the time, other team members will not mind if you work alone for everyone. It is important that other team members trust your capabilities and don’t interfere at later stage. You might have to work little harder, but this way of finishing work is much faster than the traditional way doing everything in the team.
This does not mean that I am suggesting to do everything individually and to avoid working in team. I am suggesting that we try to avoid conflict by proper project planning at the very beginning of the project. If this cannot be achieved for any reason, try to work on whole project individually.