Companies are looking for some foolproof metric that will tell them when a candidate fits into their organization and has the seeming guarantee of being the perfect employee. Unfortunately, this utopian world doesn't exist. There are too many variables in both people and companies to allow for such a simplistic response. Companies need to remember that we are effected by our surroundings. The perfect employee can be quickly destroyed by a bad work environment and a bad employee can ruin a good work environment.
Employment is an on-going relationship and requires constant adjustment on all sides.
CNE's, MSCE's and other certifications can be just as damaging if used in improper ways. While they can be an indicator of what people know, they show little about the employees personality, troubleshooting skills, people skills or overall work ethics. Relying on any one certification, test score or other indictor is foolhardy for everyone involved. The next time someone asks you for a particular piece of information be sure to ask them what other factors they are taking into account. You owe it to yourself to make sure they see a balanced picture and not just a series of numbers to be typed into a spreadsheet.