Tetris is all about getting a group to work together to accomplish a goal. I think it shows what sort of personality a person has, especially if we assume that people prefer the shape that they most identify with. So really, it might be useful for any type of job.
People who like Ss and Zs see themselves as quirky outsiders, happy to keep things interesting without being as helpful in accomplishing tasks.
People who like Ts, Js and Ls are hard working specialists who only rarely let their individualism get in the way of getting their job done.
People who like Os are less concerned with individualism than others, they know that if everyone else was more like them, there would be no conflict.
People who like Is see themselves as more deserving than everyone else, as for them to reach maximum effectiveness, other pieces must sacrifice their own opportunity to be the one to score the points.
Poll