Some senior buyers are already gone. Vice presidents, too. But for 13,000 other Target Corp. employees in Minnesota, there's fear that the bull's-eye is on their backs. Target jolted the Twin Cities on Tuesday when it said "several thousand" corporate staffers will be laid off in a cost-cutting move. Executives didn't say who, when or where -- although the buzz is the ax will swing freely next week. Since the news broke, reaction to Target's $2 billion cost-savings plan has been split, especially by street. On Wall Street, analysts mostly liked the plan. Target stock touched an all-time high Wednesday...