1: Have balance in all required skills

Having a well-rounded team will win you any game, whether it be in sports or academia. In this way, the team members can teach one another their strengths, and in turn cover one anothers' weaknesses.

2: Find people superior to you in at least one way

If you can do the job in every way better than all the rest, what's the point? A high achieving team has all bases covered, each member skilled in their own part(s).

3: Encourage group conversation

If one person has a monopoly on ideas, then it isn't a team, rather a boss and a few grunts. Plus, with open conversation, idea quality and quantity both dramatically increase.

4: Have trust in one another

Team communication is no good if one member doesn't fully trust another. Ideally, team members should be able to trust one another with their lives. The leader must exemplify this. A boss will push people down in a manner that will empower him or her, but weaken the team, thus making the team feel as though they are nothing without the boss (negative charisma). Instead, a good leader will empower the team, making everyone feel stronger and tightly knit, working with the leader not just because they must, but because they want to (positive charisma).

5: Delegate, delegate, delegate

A team means everyone doing something, ideally what they're good at. Let them do what they enjoy and are good at. This will improve the team's performance, and build that atmosphere of trust.