The only thing I can think of is that Loria is attempting to tank the team and have them lose potentially 130+ games next year. That way he could cry about how much money he is losing and no one (even less than now) will come to the games. Then he can get the team out of Florida within a year and have some other city buying him a stadium.
This is the only possible explantation. We knew the Marlins had to cut payroll, but they've gotten rid of the ENTIRE TEAM! I mean, this has to be the result of some kind of conspiracy either to expedite the moving process, or to contract the team and have a contraction draft containing all of the best prospects in baseball. There's no other explanation for an attempt to get rid of Cabrera and Willis besides the fact that they are TRYING to lose. It makes absolutely no sense to say you are rebuilding, then dump your best young talent.
As a Marlins fan I'm already beginning to look for a new favorite team, since not only are all my favorite players gone, the whole team will be gone very shortly. Very, very sad time to be a Marlins fan.