Explanation/Reference:
Explanation:
The Development Team is self-organized, thus manages and decides how to manage their own progress.

Scrum addresses complex problems in complex environments and asserts that knowledge comes from experience and making decisions based on what is known. What is known can only be discovered in hindsight.

When working on complex problems in complex environments, it cannot be guaranteed that applying a specific process or tool will fix the problem. Although, process and tools are important it's more important that people collaborate and try to find different solutions together and not rely solely on a tool to fix the problem.

The Scrum Master serves the organization in several ways, including: Leading and coaching the organization in its Scrum adoption; Planning Scrum implementations within the organization; Helping employees and stakeholders understand and enact Scrum and empirical product development.