I'd be very sad to see Green go, but ultimately I agree that if the price is right, we'd have to look at it.
I wouldn't trade him for another player though. Definitely not for players like Carrazzo or Fisher. That would be a massive step backwards, not to mention a huge waste of a spot on our list, which at the moment are at a premium. If we're going to trade players in our best 5 then it should be for a very good draft pick and nothing else.