René,
The magic word is "Delegation".
Yes, as the project manager you are ultimately responsible for the overall success of the project. But you cannot handle every task of your project, which is why we delegate the execution of tasks to our project team members.
And as part of the assignment you also delegate the R and the A. Here is a simple definition of these 2 words that I found and like:
Responsibility is the 'ability to respond'. For you to do the job, you are assigned, you simply need an ability to do it. Whether you do it well, or not, is another matter.
Accountability is the 'ability to be brought to a count'. In other words, your work is checked and verified that it has been completed well, accurately and in accordance to the goal that was set.
So if you assign a task to Peter, then you automatically also assign the R&A to him. You as the project manager you retain the R&A for the overall project, but Peter assumes R&A for his task.
Your name should only appear in those boxes of the RACI chart where you are truly and actively involved.
Until Next Time,
Cornelius Fichtner, PMP, CSM
President, OSP International LLC