Australia is a country. It's part of Oceania. Oceania is a continent made up of Australia, New Zealand, New Guinea and most of the Malay Archipelego.
An effective team leader is honest and open with his team members. Leaders who possess integrity gain the trust of team members because he does what he says he will do and treats others the same way he wants to be treated.
High turnover, the team I was on saw over 20 people leave in a 2 year period (and it was a small team. No development of managers so that they can improve, and leadership does not address issues or poor managers. It seems that leadership doesn't value employees.