It would have helped to have included references to the original
question to help set the context.
However as I understood the issue at the time, you had a plan and you
wanted to be able to view who did what work as opposed to who was
originally planned to do the work.
Firstly, set a baseline (Tools/Tracking/Baseline). This will record the
resource assignments that exist at the outset.
Then if you go to either the Resource Usage or Task Usage view, you can
right click on the right hand table and add the baseline work field, the
work field and the actual work field.
This will allow you to see how the actual work assignments differed from
the orignial baseline assignments.
I used the term resource-centric to mean that from the Resource Usage
view you can see on a resource-by-resource basis how the individual's
assignments have changed from the original plan to now. Similarly, you
can do the same on a task-by-task basis in the Task Usage view.
Please provide some feedback as to whether or not this answers your
question.