By following these best practices, you can ensure that your Agile team delivers high-quality software:

1. Involve the QA team from the beginning: In Agile, the QA team should be involved in the development process from the very beginning. This will help them understand the requirements, design, and development process, which will enable them to provide better quality assurance.
2. Test early and often: Agile development requires continuous testing throughout the development process. It is important to test as early and often as possible to identify issues and defects as soon as they occur. This helps to reduce the cost of fixing issues later in the development process.
3. Automate testing: Automation testing can help to reduce the time and effort required for testing. Automation testing should be used to test repetitive tasks, such as regression testing, and to improve test coverage.
4. Use Agile testing frameworks: Agile testing frameworks such as Behavior-Driven Development (BDD) and Test-Driven Development (TDD) can help to improve the quality of the code and ensure that the software meets the requirements.
5. Foster collaboration between teams: Collaboration between the development, QA, and other teams is critical in Agile. Open communication, regular meetings, and a shared understanding of the goals and priorities can help to ensure that everyone is working towards the same objectives.
6. Prioritize quality: Quality should be a top priority in Agile development. Quality should not be sacrificed for the sake of meeting deadlines or adding new features. The entire team should be responsible for delivering a quality product.
7. Continuous improvement: Continuous improvement is an essential part of Agile. The QA team should continually review and improve their testing practices to identify areas for improvement and implement changes to improve quality.