What happened to Tiffany is the same thing that happens to young women and men who grow up in the hood and somehow end up in Corporate America. They don't know how to adapt to the mainstream world and can't relate to their more privileged counterparts. So they let their frustrations get the best of them and become self destructive. They feel like an outcast but everyone else sees them as negative ultimately leading to them being terminated or quitting. I've seen it happen time and time again. She could have been bigger than Eva if she had more guidance.