During the interview, they made it sound like there were well-established systems, but once you start working there, there are no systems at all.

The systems keep changing.

People who do their jobs properly can't stay, while those who curry favor can become permanent fixtures—even if they don't do any work, it doesn't matter.

There is constant infighting among senior management. Think twice before joining the company.

As long as you mention resigning, the boss may give you a raise.