I agree that Rivers will not be as good on day 1 as Briggs at WLB but I would prefer to see Rivers on the Saints and use the other financial resources available to improve DT and CB.
Briggs wants a mountain of money to play a position that really doesn't warrant $10+ million dollars per year. He played in a system where the WLB was used differently than in New Orleans. That's not to say that he couldn't do it but he may not be as good in the Saints scheme. We also have to take into consideration that he will no longer have the luxury of playing behind Tommie Harris, next to Brian Urlacher and in front of Mike Brown. He will be, more or less, on his own in New Orleans and he has yet to show that he can handle it. Rivers has proven nothing but he would cost less and has fewer miles on him and the savings can be used elsewhere.