You don't see minorities being promoted at all. There's a ridiculous amount of favoritism. The people the managers like get less work, promoted more often and large raises as well as special project opportunities. This leaves the less desirable employees getting extra work. HR sweeps all the complaints under the rug and tell you it's you, not them. If you complain too much, or are too assertive you will find yourself on a plan and fired. All this hostility started after they welcomed the new COO. It was such a good company to work for before that specific change.
There were a lot of upper management turnaround, but it was very manageable because you felt like you were part of a team and you mattered.