The model of leadership you are referring to is known as Situational Leadership. This concept suggests that no single leadership style is the best; rather, the most effective approach depends on the circumstances and the maturity level of the team or individuals being led.
One of the most recognized frameworks within this model is developed by Paul Hersey and Ken Blanchard. They propose that leaders should adjust their style—ranging from directing to coaching to supporting to delegating—based on the readiness and competence of their followers, as well as the specific demands of the situation. The idea is to be flexible and adapt to the needs of the team to enhance effectiveness.