I've been tasked to lead a special project team for my company. One of the teammates has been with the company 25+ years. Outside of the special project she is a peer that I am required to work with on a daily basis. Her boss was recently promoted and has no managerial experience. The teammate has a reputation for getting things done. She is also the only one that does her job at our facility.
Problem: the teammate is a bully and her behavior is causing problems with the team. After a particularly confrontational couple of days I approached her, asking what was going on. After getting to the root cause, she was stressed, I provided feedback that her behavior consistently "caused others to walk on eggshells and hesitate to want to deal with her". Her response was "ya'll are just going to have to deal with it" delivered with a big F-you smile.
I'm at a loss for what to do. I've discussed with my boss, also a MT follower, and he had no advice either. My gut feel is the next time she behaves that way, to ask her to leave. However, she is ruthlessly vindictive and both my full time team & the special project team need her support.
BTW, I'm a high D