Know that the odds are against you:

When you think about ‘getting your boss fired’, you must know it’s extremely difficult for you to throw out your boss.  Even though, you cannot be assured that a better manager will be replacing him/her, you should inform your upper management if you find out your superior is doing some illegal activities. Before approaching the superior authorities in your firm, you should consider whether you have enough materials to convince them that your manger is a loser. And it is better to know the relationship between your management and your boss. Also make sure whether your management is aware of your superior’s incapability.

Get hold of your co-workers:

If your superior is bad, of course, many of your teammates feel the same thing just like what you think. It is better to find whether your co-workers have similar experiences which can be more helpful when you attack against your boss. Interact with your teammates if you suppose he/she has been troubled because of the boss and also talk about your problems, so that both of you can dig more about your manager’s misbehavior or failure. But, be careful not to get in trouble as some of your teammates may alert the boss.