Hal Stack, director of the Labor Studies Center, is quoted in a story about speculation the Chrysler Group will be bought by General Motors Corp. He believes the UAW would not welcome such a development. "The first thing GM would have to do is say where their excess capacity is," he observed. "If you're the union, I'm not sure you want GM to buy it." David Cole, an auto industry analyst, agreed that union relations would be a top consideration in any merger or buyout. He said GM's only incentive to buy Chrysler would be to gain leverage in seeking concessions from the UAW.