It wouldn't be a bad idea in my opinion. If they do move, they would have to get a new stadium as Olympic Stadium is outdated for modern baseball. Additionally, they would likely switch divisions with the Marlins. This would allow Montreal to renew its old rivalries with Atlanta, Philly, and the Mets while creating a new rivalry with Washington (the original Expos). This would also help boost Miami attendance with the Yankees, Red Sox, and Orioles making frequent visits each year.