Relying on yourself

Isn't it amazing to look at all the business books that come out and give recommendations regarding change? I mean do all these people really have so much experience concerning change? Some authors are really great and worth listening to but many authors are less convincing and are basically a waste of time. While I think it is good to get as much information as possible from a number of different resources I think we also have to start relying on our own judgement again. Before you can and should rely on your own judgement you have to put in some serious effort like learning as much as possible about the topic at hand and you have to accept that you will never know everything about a topic. It can be tough when you think there is always someone out there with something better (e.g. education, judgement, success, connections, skills etc.). While in many cases there might be someone out there with something better that shouldn't stop you, after careful preparation, to rely on yourself.