One of the cardinal sins of management is to spend too much time shoring up the weakest contributors and too little time supporting the top performers. George Bush provided us all with a textbook case of that recently when Cabletron Systems and Peavey Electronics, top corporate performers by anyone's standards, warranted nothing more than whistle-stop photo opportunities for his reelection campaign. Meanwhile, his travel companions on the panhandling jaunt to Japan included the CEOs of the Big Three automakers, whose combined losses in 1991 are measured in billions of dollars, and whose contribution to employment includes the elimination of hundreds of thousands of jobs.