Remember, in the life cycle theory, maturity does not refer to age. Maturity means the relative independence, ability to take responsibility, and achievement of an individual or a group. Because of this, the life cycle theory is seen as a curvilinear relationship. Obviously, turnover plays a big part in whether a leader can really use the life cycle theory. High turnover is going to mean that you constantly have new people.
Low turnover allows the followers to reach maturity in the job.
When people first start a new job, they generally need more direction and clarity, especially on tasks that may be ambiguous. As they develop the psychological maturity in the job, they need less and less structure and less and less consideration.