I will show what you should pay attention to when you adjust assignments and reschedule your tasks in the project.
First I will add four tasks to my project and they will be in automatic scheduled mode, and I will schedule them:
I will add 3 resources through Resource sheet (John, Paul, and Mary):
I will now start the Team Planner View:
You can see that John Paul and Mary don’t have any tasks assigned, and that all tasks are scheduled.
I will assign John to the Task 1 and Task 4, Paul to the Task 2, and Mary to Task 3. I will do it using drag and drop function:
and I will get:
You can see that those Tasks are assigned and scheduled. Now I will drag and drop Task 1 and put it as John’s unscheduled task, and I will get a warning:
That means that I will actually delete the work of Task 1 since it is no more scheduled.
The same will happen if I move any scheduled task to the unassigned and unscheduled area (for example, Task 2):
Now I will reassign John to Task 1 and Task 4, Paul to Task 2, and Mary to Task 3. And again I will get:
I want to reassign Task 4 to Mary, and I want the Task 4 to begin on 12.05.2011. First I will drag Task 4 and move it to Mary on 12.05.2011. I will get:
Now I will release the mouse button, and I will get:
You can see that MS PROJECT did not allow me to reschedule Task 4. It only allows me to move the Task from John to Mary, but not to reschedule it EARLIER. If I had tried to move Task 4 from 19.05.2011 to, for example, 20.05.2011, MS PROJECT would have allowed me to do that.
Now, the Task 4 is assigned to Mary, and the start date is 19.05.2011. Now I will try to move it to 12.05.2011, again. I will get:
As you can see, I cannot move (or reschedule) this task to an earlier date without breaking the link. After I click the OK button I get:
Task 4 stays scheduled as it was.
So, the Team Planner View is very powerful, but you must use it with caution.