Not Fair

I've got 20 people to look after during my shift. I am responsible to make sure that they finish their duties and everything is ready for the next shift. I deal with them for 10 hours every single day seven days a week, 8 to 10 months. I certainly know who is who, who is good at his work, who is a mamagallo (ship term for lazy) and who is an excellent worker. When it comes to give promotions me and my collegues have our top 5 list of guys who really deserves promotion. And in most of the cases the Manager of the Dept. consults us before taking the decision. However, this time the assist. manager didn't consult us and he gave it to someone who is not bad, but not the best. It made me upset, because there are couple of guys with more time in the company with a lot of experience and really reliable workers, and for some reason they don't get it. Unfair no? What should I tell to this particular guys? keep on working good, that someday you'll get it? Yes, but would they understand? would they really want to understand, when it is an unfair situation? Yes, yes, I know, things like this you get to see everywhere and will never stop to happen, specially when we are not under God's guidance and will. When we decide to walk according to God's will, this kind of bad decisions that affect people won't occur. Only with God's wisdom we will be able to take the best decisions ever and to be a living testimony for His glory. May God help us.