This Sunday 2.7 million Uruguayans will cast their ballots in the presidential runoff, which according to all opinion poll forecasts, will have Luis Lacalle Pou, the leader of an opposition multicolor alliance as head of the Executive next March, but equally significant, power switching, it will mark the end of fifteen years of almost undisputed predominance of a catch-all coalition, Broad Front, which ruled South America's smallest country for three consecutive five-year mandates.