I agree with the previous reply to be a professional, but definitely cannot agree with that fact, that you has to just accept the non fair under belt kick from your surroubding, what can be your company, manager etc.

I think the most important thing in this kind of situation is to identify what is important for you in life- what are your prioritees. Because maybe the fired DBA and the cutted headcount is the opportunity to show your qualiities. But maybe the unfairness pushes you to decide no to waste your time with those people and simply move on. Definitely if you have a clear vision about your goals and you are aware of your values, you know what to do.