When a company doesn't perform as predicted, stock prices decrease and there is a lack of luster, who's to blame? Often the CEO catches the flak -- after all, he or she is at the helm, steering the company into rough waters, right?Forget the soft stuff. Based purely on numbers and performance, a new survey conducted by Computer Reseller News ranks 998 high-tech company CEOs, and actually named the top 10 worst CEOs.