As a model of assuaging anxiety during transition, this passage is exemplary. While the people know they need a leader, they also need to know that the leader is in touch with and responsive to the existing structures and history of the community. By linking Joshua's decision making power to consultation with the religious authorities, the Torah indicates the importance of sharing power between a new leader and the organizational infrastructure which represents continuity. Ultimately, it is Moses who lays his hands upon Joshua and confers legitimacy. Having done that, the retiring leader must have the grace to step aside.
Transitions can be traumatic, and change is challenging.
The Torah teaches that transitions are inevitable, and that the key is to manage them in ways that support continuity, involve the consent of the community, and demonstrate the willingness on the part of the departing leader to support the new leader. Anyone may submit a d'var Torah to the list, but submissions must arrive at least six weeks prior to the week of the parasha or haftarah that is their subject. If accepted by the editors, they will be published in the appropriate week. The maximum length is 750 words and submissions are subject to editing. Torah are welcome.