@Bob-Beatty said:
Never tell an interviewer you read something negative on glassdoor.com from the previous IT Manager,
I would say if you are in A.J's position you shouldn't but if you are just looking to move up in your career it can be helpful sometimes to bring up negative's you've heard about them company to see what they have to say about that. I've actually had companies say they were glad I brought it up. But I would say do not do this if you are desperate for a job.
