I'm trying to design a UI wherein a person is moved from a list of people into one of four mutually exclusive groups. Each group needs to be shown on screen (there are typically less than 15 people in a given group).
The workflow is to find a user and then add them to a list, so I think having one place to select users is more intuitive than having a selection region for each group.
I'm currently split between two layouts. In both the list of people would be docked to the left side of the screen and go from the top to the bottom. The first layout involves splitting the rest of the screen vertically between the lists. The second would be arranging the group lists into a 2 by 2 table.
I'm not really thrilled about either a few these ideas. Which of these seem less overwhelming to the user? Or is there a better flow that I'm missing here?