Introduction:
In order to quickly identify the underlying administrative principles and theories applicable to a given case study for Public Administration, it is important to follow a systematic approach. By breaking down the case study and focusing on key elements, one can efficiently analyze and apply relevant administrative principles and theories.

Steps to develop a strategy:

1. Read the case study:
Carefully read and understand the case study to gain a comprehensive understanding of the situation, the actors involved, and the issues at hand.

2. Identify the key actors:
Identify the main individuals, organizations, or groups involved in the case study. This will help in understanding the dynamics and relationships between them.

3. Determine the objectives:
Identify the goals and objectives of each actor involved. This will provide insight into their motivations and expected outcomes.

4. Analyze the context:
Examine the broader context in which the case study is situated. Consider factors such as the political, social, economic, and legal environment that may influence the administrative decisions made.

5. Identify administrative principles:
Identify the administrative principles that are relevant to the case study. These principles can include concepts like accountability, transparency, efficiency, effectiveness, equity, and public participation.

6. Apply administrative theories:
Apply relevant administrative theories to the case study. These theories can include classical theories such as Taylor's Scientific Management, Weber's Bureaucratic Theory, or modern theories such as New Public Management or Public Value Management.

7. Analyze the outcomes:
Evaluate the potential outcomes of different administrative decisions and actions. Consider the short-term and long-term implications of each option.

8. Make recommendations:
Based on the analysis, make recommendations for administrative actions that align with the identified principles and theories. Consider the feasibility, practicality, and ethical implications of the recommendations.

Conclusion:
By following this strategy, one can quickly identify the underlying administrative principles and theories applicable to a given case study for Public Administration. This systematic approach ensures a comprehensive analysis of the case study, leading to well-informed recommendations and decisions.