I've been reading Dan Roam's book The Back of the Napkin and it's been a great read. While I picked it up based on the recommendation of a former colleague it not only does a great job providing a framework for identifying problem components but provides a framework for 'visual thinking'.
It's a good and relatively quick read that you can can probably finish over a weekend or couple plane trips. I can see its application for consulting and marketing firms looking to grow their teams capabilities but as with any process and methodology implementation, adoption and standardization is always the challenge.

Books