What are strong leadership skills or traits and which ones did Arlene possess?

What are strong leadership skills or traits and which ones did Arlene possess? Is a leader considered a good leader only because of their actions during a crisis? Arlene didn’t have formal leadership training that we are aware of. What specific things did she learn about leadership in this expedition?
Arlene took responsibility for whatever happened to her team, especially at their bad zones. She once asked them if she thought they should keep going. As a leader, is doubt okay? Did she believe in her team? How can leaders convince their team mates that they can accomplish their goals? How can leaders overcome their own weaknesses or help other team members overcome theirs?
How could Arlene Blum have handled the team’s differences better? Can conflict be easily avoided? Are there realistic techniques that leaders can use to accommodate their team members? Arlene took several approaches in overcoming the challenges that arose in her leadership position. Explain how those approaches would be helpful in your own career.
Did Arlene control her group as an effective leader? Should leaders give democratic choice equally for all parties involved? Arlene cautioned Watson and Chadwick several times about continuing their ascent. As their leader, was there anything she could have or should have done differently that may have prevented their deaths? Explain your position.