Promotion System Change?

Let's face it, promotion to E-5 is a very important issue. It is the beginning of the Army's first and most influential front of leadership. I personally have been in the Army long enough, and have been to enough places, to realize that sometimes those who have passed the board may not be the most ideal candidates for promotion. Please give your thoughts on the promotion system for E-5 and the pros and cons involved in it. Please be open-minded when answering or reading others answers that you may not agree with. It takes the ideas and efforts of all ranks to keep the Army running, let us try and keep this discussion that way.