Among his other real estate projects, he???s been helping to reshape Moscow???s largest department stores, Tsum, into a designer emporium having brought in Armani, Bottega Veneta, Gucci, Yves Saint Laurent and other brands to the 250,000-square-foot setting. ???Visualize a Barneys or a Bloomingdale???s,?????? he said. ???That???s what it looks like now.???On the start-up side, Traub said he???s la