Sorry to burst anyone's bubble: No way in he!l the Marlins trade for Arod. The team has already made it clear they won't bump payroll much. We already know they have to bump it up for Cabs and D-Train. Even if Willis were part of the deal, the Yanks would want more in return.
Teams like LA, Houston, Cubs, Phils, etc. could give up more players/propects.