Changes at work

I believe I am like everyone else in this feeling, but change is something we don't always want to happen. We get comfortable with the people with work with, as well as the job we do on a daily basis. At my current job there have been several co-workers transfer to a different department as well as leave the company entirely. I have been use to working pretty much with the same group of people every weekend for the past three years, so my comfort level was maintained. Now with new nurses and techs coming on our unit it makes me feel a little intimidating because of the unknown. I don't think this is a negative thing that new people are there. I know that their new ideas as well as the way they work with others will make our workplace a more positive atmosphere.