The correct answer to this open question is the following.
Choose an organization and identify an area in which it needs to communicate a change. The area that needs change is Human Resources of the main plastic fabric located in my community.
The type of change agent is one-on.one meeting managed by the Human Resources manager.
The change model that needs to be implemented would be the "John Kotter 8 step change model."
This interesting model invites managers to create a sense of urgency, get all the employees to believe in the change, to implement it successfully.
The model had to be established from the top of the organizational hierarchy so it can be valid and implemented from the top to the bottom of the organization. Top management is the first to set the example of the changes that should be implemented so employees can see that the "bosses" are the first ones to assume the role of change.