How do i defend myself from a bad job review. I feel i was being used as an escape goat by another employer.?

I am a first time director and the staff knows this and some of the times it seems like some are looking for something to go wrong. Especially the last person we hired. She is constantly making excuses for her work not being completed. After asking her numerous times and still not getting the work. I sometimes get frustrated and say ';I need the paper work right now!'; She says something in this regard ';Why?'; So I snap back with ';because I'm in charge'; You have to understand this person pushes all the right buttons and I have told my supervisor this many times but it seems to fall in deaf ears. When I went for my first review after 8 months at this job I was shocked & hurt I couldn't believe what I was hearing. I never imagine such a bad review. I did everything that was expected of me plus more. Why did they wait so long. My review read: I use power and control to show that i am boss. And that I spend to much time focusing on others' weaknesses instead of what they are doing well.