Final answer:
A steering or leadership team is responsible for standardizing project-related governance processes, selecting and prioritizing projects, making project-level decisions, and maintaining clear requirements and communication throughout the project.
Step-by-step explanation:
A steering or leadership team typically takes responsibility for standardizing project-related governance processes, selecting, prioritizing, and resourcing projects, performing project planning and making project-level decisions, and ensuring clear requirements and communication throughout the project. They play a crucial role in facilitating the sharing of methodologies, tools, and techniques, which helps streamline project management practices.