Your boss doesn't offer any support, guidance, or feedback.
If your boss doesn't take the time to offer any feedback, guidance, or support you as you work toward achieving your goals, it can be seriously detrimental to your career, says Kerr.
Taylor says if your boss seems primarily concerned with the tactical aspects of your job and project completion — and less so with whether you're advancing your skills or being challenged by your work — they probably don't care about your success.
Yes, he or she may just be a bad boss, but if you see they do positive things with your coworkers, but not you, it's a bad sign.