Interview myths - never talk negatively about your previous employer

It’s a commonly held belief that you should not talk negatively about previous employers/managers when interviewing.

Why?

If you’ve been working overtime to clear up the mess left behind by shoddy processes and a temperamental boss who doesn’t know what they’re doing, why should you fall in line and be expected to come up with some other reason for wanting to move on?

Maybe your boss has his or her favourites in the team, who they’d prefer to give the interesting work and promotions to, and this isn’t based on merit, but on who accompanies them to the pub most often to listen to their tales of business dominance.

So what should you do if you find yourself in this situation and you’re asked at interview why you’re looking for a move?

Tell the truth! 

It may be negative, and you would probably be wise not to go in to granular detail about all the goings-on, but if you can explain the key reason/s without getting personal and put any examples in to the context of how they have a negative impact on work performance or on your career development, then these are perfectly valid reasons and therefore a prospective employer should have no reason to cause alarm.

Exercising some discretion is of course advised, but it’s far better to be open and honest than to conjure up some alternative reason, which may come across as vague and lead them to assume (rightly) that there’s something you’re not telling them. 

Have you found yourself in this situation? How did you deal with it if so?