brookstar

I need 1 page summary 
A factual report about this article including:

 
1- A brief introduction for each approach (Porter's-Christensen's) 
2- An explanation of the pros and cons for each approach 
 
Also, please include which approach you would recommend!

This is the article   
http://www.nytimes.com/2014/06/01/business/business-school-disrupted.html?_r=0

Thank you