Does the Johari Window seem like a good framework for leaders who want to create better communications among team members?

Does the Johari Window seem like a good framework for leaders who want to create better communications among team members? Can you think of potential problems a leader might encounter when applying the Johari Window?

Johari Window ModelThis is the very famous model of understanding about self and others given by JosephLuft and Harrington Ingham. As according to this model, there are four different quadrants...