The "for sale" sign is back at Evansvilles Casino Aztar. After just over a year of ownership, Columbia Sussex announced Monday that it will sell Aztar, as well as the Tropicana Casino in Atlantic City, and a third casino in Mississippi. Problems getting a new license for the Tropicana triggered the sale. New Jersey regulators said Columbia Sussex isnt capable of running a first class operation. The owners also ran afoul of Evansville mayor Jonathan Weinzapfel after making several layoffs. Local business leaders say the announcement isnt a big surprise and could translate into a golden opportunity. Columbia Sussex laid off more than 70 Aztar employees this year. Dealers and supervisors on the gambling boat joined a union in November in an effort to increase job security.