What are the good points and bad points of this approach? What traps might it fall into? How might it really work?

Paper details:

I would like you to think about the process described in the case – asking four executives to each develop a plan and then having Marcus and the consultant decide what to do. What are the good points and bad points of this approach? What traps might it fall into? How might it really work?

How do you think the process described led to the outcomes proposed? And is that a good thing or a bad thing?