A stong team needs to: 

Allow for All Types: Communicate that all personality types are valued. Personality tests are always a great way for the group to bond and see who is who.

Place Them In Their Element: Put people in their element. Nothing motivates people like success, and putting people in position to do that builds confidence and momentum.

Give Away Trust: Empowering others is indicative of a secure leader. Showing a team that you trust someone else for a task gives them an opportunity to step up and keeps leadership from being insular.

Do Stuff Together: There's no substitute for spending time together. Get your team loose by playing games, opportunities to praise one another, or just organizing social events. The team that plays together, grows together.

Use the Praise System: Know incentives for staff. If they love credit, praise them publically. If they value family time, tell them to leave early this Friday. Knowing what motivates them helps effective management and moral.

Be Open to Newness: The first rule of improve is "always say yes". Having a "yes" attitude to suggestions and improvements creates an open and free environment to share. Not every idea is a winner, but creating the right environment will bring the good ones to light.

Be Paired Up: Don't be afraid to match experienced with new, introverted with extroverted. Once you know your team well enough to see traits, pair up areas of strengths and weaknesses to get a holistically better result.

Create Accountability: Knowing that they're responsible to the team, as well as the boss is a motivating factor. Great teams know their actions not only affect themselves, but reflect the entire program as well.

Not Letting Others Sink: If you see a staff member struggling, have a plan for improvement. Do they need a mentor, additional training, or a good ol' fashion pep talk? If you see someone having a hard time don't just wave to them as they're going down.

Source: Extend-a-Care for Kids, Austin, Texas