"Warning signs" that candidates should be aware of during an academic job interview
One thing to consider is tenure rates. Some departments are much more difficult to gain tenure in than others. My undergrad institution is well known for tenure cases that end in litigation. Similarly, I am aware of a department (small liberal arts college, not MIT or the equivalent) that denied tenure to something like six assistant professors over the course of a decade without granting tenure to any of its hires.

Additionally, it's worth considering whether the department has autonomy over the hiring process. If the meeting with the dean is not largely a formality, this might be an issue.