Blockbuster ... And I Don't Mean The Da Vinci Code

Last week DJ Dozier & Friends and We B-Low (formerly known as El Capitan Moregan) made the following 8-player exchange:

To Dozier
Vlad Guerrero
Roy Halladay
Joe Nathan

To We B-Low
Jim Edmonds
Juan Pierre
Felix Hernandez
Kevin Millwood
Mariano Rivera

I don't have any analysis for this trade. The Commissioners voted 3-0 (each with no small degree of resignation) to approve the trade.