I like the idea of scoring the students on different aspects. We often do group work in class where the entire group gets a grade. This can be problematic if certain students are contributing more than others. I have started having students score each other. I don't use it as a grade but I do use it as a consideration of the overall grade for the group. I like the idea of giving a group grade along with an individual grade and a business grade. It would make the scoring process more accurate for each student.