It's not an uncommon problem. I have worked at different jobs in which they struggled to work together as a team. I have also attended churches where the team chemistry has not been present. Boy, does that hurt! It's like pulling a wagon with square wheels.
We all know the answers to the problem. We need: 1) a common goal as a team or group, a common vision; 2) a common trust in each other as a team, knowing that the other person will perform their role to the best of their ability; and 3) a common humility, each person forgetting about themselves and working and focusing on the vision as a team. Yet we stumble in these areas. We don't have a common goal. We don't trust. We do our own thing to please ourselves. Our pride really obliterates any concept of "commonness." The results? A highly talented team that is struggling to win. A company struggling to produce its product. A church not getting along with each other nor reaching the community.
It will be interesting to see what happens to the Lakers. If they had the teamwork of the overachieving Baltimore Orioles last year, the sky would be the limits. That would be true with any organization or group or family. It is amazing what a common goal with a common trust all based on humility can do.