After being let go in Chicago, Guillen will bring his rambunctious mouth and mediocre managing resume to a brand new franchise, hoping to start fresh in a brand new stadium.
Miami has been cooking on the hot stove, signing Jose Reyes to a six-year, $106 million deal.
They've also acquired Guillen's former ace in Chicago Mark Buehrle, as well as closer Heath Bell.
The Marlins appear to be a much improved team on paper, but the weakest aspect of the team is its manager.
Here are 10 reasons Guillen will prove to be a mistake in Miami: