Answer: The organizational pattern used in the paragraph is the direct type.
Explanation: In this type of pattern, people's reactions to the announcement made are foreseen and written on the speech itself, as we can see on "we will miss you". That is also the conclusion that is made about the situation. Your main objective is to persuade the readers to feel like you wish them to, by using arguments to support it, such as describing her career on "After 30 selfless years of service".