* Way too much consensus decision making. It takes forever for decisions to be made there.
* Politically charged culture. It's all smiles and friendly handshakes on the surface, but if you're not on guard, they will run a bayonet through you at the least expected moment.
* Contractors here are generally treated as second-class citizens.
* If you are stuck with a bad boss or bad team, start looking. When I was brought on board, I discovered that the boss wanted me to use "process" to micromanage his team for him while he played Walmart politics. Meanwhile, his team was telling me how much they hated process. This was a situation that was set up to fail, and made worse when my boss started micromanaging me. I put up with a lot of guff from him, including numerous times when he would belittle me in front of his team, before he summarily dumped me by way of my agency. He was too much of a jerk to have that final "we're done here" meeting with me.