Retaliatory environment. Do not go against the grain too aggressively otherwise senior managers will come after you in one way or another. I saw this happen multiple times.
There is also a separate decision making track from the decision making meetings. Managers were trying to change this, but the culture is top down.
Too many people who don't do much. One often hears "it will take 12+ months" to do something for a project one would think takes 3-6 months. Setting expectations to do less work and vest.