Despite suffering only a tiny drop in approval -- perhaps due to votes from recently-released executives -- Tim Cook's rank on job and boss review site Glassdoor fell from the top spot last year to number 18 on the latest list. His replacement is actually three CEOs, including Facebook leader Mark Zuckerberg and SAP's co-CEOs Bill McDermott and Jim Hagemann Snabe. All three men received a 99 percent score, while Cook fell from 97 percent to 93 percent in this year's survey. The ratings are compiled from employee votes.
