You probably have examples from your experience of work these days. These endings often occasion times when people get angry, sad, frightened, depressed, confused. Sometimes these emotional states are mistaken for bad morale, but they aren't. They are the natural sequence of emotions people go through when they lose something that matters to them. Below is a summary of Bridge's description of this sequence.
Denial is a natural first stage in the process of endings.
People may deny that any loss will take place in an effort to protect themselves from the first impact of loss. This denial is a healthy response to change if it does not last too long. At some point, it may need to be pointed out to folks that the change is really, actually going to happen, no buts about it. Anger can be everything from grumbling to outright rage and is often misdirected or undirected. It can often lead to foot-dragging or even the making of many mistakes.