Check out this article he has written, trying to recommend who would be the better guy to partner Steven Gerrard in the center of English midfield. To briefly describe his analysis,
1. you develop a framework
2. assign weights to each component (here 1/5 for each)
3. do some qualitative analysis and then arbitrarily assign scores to both guys on each component
4. aggregate across components
5. then forget the wonderful framework and the score and use some “human factors” and stuff to come to the obvious decision
An extremely popular method. A method so commonly used by consultants (and they get paid millions for it). And the consultants would’ve been trained well to use such methods in B-schools – they would’ve used it for numerous course projects and assignments, and rewarded for it.