Promotion is based on favoritism and "yes man" personality types. If you ask a question or challenge a decision, you will be labeled "difficult". I was identified in a prior review I left here after quitting and my old manager started harassing my former coworkers over it months later. It was much more in-depth, but I removed it due to pressure put on folks I consider friends. It's been nearly a year, and I've heard the department I left has only become more toxic.