These key points are important traits to what a leader should have :
1.) Having a vision to succeed -
A leader which is determined to succeed is important.
2.) Having passion
A good leader has to "light the fire" in his/her group members.
3.) Be a great decision maker
A leader must know how to make discussions at the right time, leading its members.
4.) Be a team builder
A leader has to develop a great team which is well bonded together.
5.) The leader must have a good character
Being a leader, you must have a good character, only then will your members respect
you and listen to you.
When facing a crisis, a leader should not panic but keep calm. A panicky leader will frighten the team members and cause them to lose focus. The leader must act promptly, but not hurriedly. He/She should provide direction and respond to the situation. Leaders should also know how to mange the team and have control over the team.
Baldoni J. How a Good Leader Reacts to a Crisis (January 4, 2011)
Vogan P. 5 Key Traits of Great Leaders (April 17, 2006)