please elaborate more and put it simple as one paragraph, Introduction to Johannesburg Metro and Recent Changes in Political Leadership:

The Johannesburg Metro, located in South Africa, serves as a crucial administrative and economic hub within the country. Recent changes in political leadership have ushered in a new era of governance for the Metro. With this transition, there arises an opportunity to reassess and revitalize the strategies and approaches employed to address the city's pressing challenges.

Increasing Challenges Faced by the Metro:

The Johannesburg Metro is confronted with escalating challenges in meeting its mandate, primarily due to the rapid growth of its population and the evolving urban landscape. With an anticipated $20\%$ increase in population over the next decade, the Metro is under mounting pressure to provide essential services such as security, housing, urban transport, and utilities to its residents. Moreover, the complex nature of urban development demands a multifaceted approach to ensure sustainable growth while addressing immediate needs. These challenges underscore the critical importance of strategic leadership and effective governance in navigating the complexities of urban governance and meeting the evolving needs of the city's populace.