Miscommunication in the Workplace

I work in the equipment room at Jervey along with 15 other students and several full-time employees so communication is never anyones main concern. What I mean by that is everybody assumes that someone knows something already, while the other person is waiting on what to do. This does not happen all the time, but miscommunication happens a lot even when nobody really notices it.
One example of when miscommunication occured is when we are on the football field for practice and a coach needs something. For the most part we are all assigned a coach, so we always make sure our coach has what he needs. There was one instance where one of us had no possible way of doing his normal job that day because he was taking care of another problem, but he did not tell anyone to make sure someone covered his coach. The lack of communication caused one coach to not have anyone help him for over 20 minutes which really ticked him off.
Lack of communication in the workplace is very common, but it is something that should not happen at all. It is so easy to communicate, especially with the people you work with. People do not communicate when they are in a hurry, get lazy, or they are apathetic.
We fixed our problem by making sure each manager had certain jobs, but also had something that could help do if someone was not there. It is our job to communicate when we need help at practice, so we have to take the time to let others know.
Communicating is a simple thing that does not get done in the right way in any workplace. But in a workplace it is very important and we must recognize this. A workplace is 100X better when there is solid communication.