(NYT34) ALPHARETTA, Ga. -- May 31, 2005 -- CLASS-ROOTLESS -- While her husband, Jim, was out of town on business, Kathy Link waited for their daughter Kelsey's soccer practice to end in Alpharetta, Ga., on Nov. 16, 2004, The Links belong to a growing segment of the upper middle class, executive gypsies. The shock troops of companies that continually expand across the country and abroad, they move every few years. (Nicole Bengiveno/The New York Times)