As best practice project management suggests, it is extremely important to have a clear understanding of the roles and responsibilities of all project team resources.

I have provided a link below of a great article that explains a comprehensive review of the Responsibility Assignment Matrix.

What could be the result of a project that does not have clearly defined roles and responsibilities of all project team members?

Tallfy Project Management. (2021). Responsibility Assignment Matrix: Comprehensive Guide. Retrieved November 1, 2021 from https://tallyfy.com/raci-matrix/