The correct answer to this open question is the following.
Although the question is incomplete because it does not provide the discussion in section 2.3 or any other text of the book, we can say that the intentional element of culture that might be introduced to this situation for ensuring long term change is to have a specific philosophy that the leader can share and spread throughout all the organization so employees can identify with it. This means that the leader has to understand the concerns, worries, expectations, and desires of the people who belong to the organization, so the leader can share this philosophy successfully. In order to do that, the leader has to be the first to show the conduct it wants its people to perform on a daily basis, as well as allowing employees to be part of this creation of values, customs, rites, and traditions.