A team lead should have these following quality:

1- A lead should always be calm and compose. No non-sense talk.

2- Diplomatic and benevolent to all the team members. Gain the respect from team members.

3- Always lead from front while tackling a issue raised. No blame-game.

4- Show to the team members that u are always there as a backup.

5- Identify the limitation of the team members and help them in gaining confidence while performing the task.

6- Distribute the task according to their capability.

7- Give team members their time and space but keep them on tap about their responsibility.

8- Be generous on their personal needs. Give them leaves but again check their status.

9- Perform team building activities. Even a team lunch is a great activities. But during such team outing, no talk about work, just chill out.

10 - Nominate your team members for training which usually every organization supports which in turn help them in improve in their career later on.

These are some of the point I keep in mind while leading a team. I may looks a bit liberal but it does work in keeping the team performing.