Confirming rumors that have dogged Computer Sciences ( CSC ) since last fall, the company said Apr. 4 that it had retained Goldman Sachs ( GS ) to explore a potential sale. But that wasn't the only bit of unsettling news to hit CSC employees on a rainy day in Los Angeles. The company also announced layoffs of 5,000 workers, or 6% of its staff, by the end of its next fiscal year, in April, 2008 -- a move likely to make the outfit more enticing to buyers.