"Constitutional Expert" and the "Street Strategist"

What is the difference between the "Constitutional Expert" and the "Street Strategist?" 1. Here, constitutional expert Fr. Joaquin Bernas discusses the options of GMA http://opinion.inquirer.net/inquireropinion/columns/view/20091207-240565/What-powers-can-the-President-use 2. While the Constitutional Expert is groping for specific actions, here, the Street Strategist goes a step further and immediately works out a political strategy for GMA, on top of legal analysis http://streetstrategist.blogspot.com/2009/12/doctrine-of-equivalent-action.html Enjoy.