“An incompetent manager treats minor tasks as major tasks – while major tasks do not get done at all.”
We all know somebody like that. Here’s hoping it’s not the person you see in the mirror in the mornings. In order to avoid this, prioritisation and planning are the keys and you always need to keep an eye on the bigger picture and where any given task fits into this picture. Does it help you achieve your long-term goals or not? Is it important? If you can’t answer in the affirmative to either of those questions you probably should not focus too much on the task at hand, but identify the tasks which really do require your attention.