What is the manager's job? It is to direct the resources and the efforts of the business toward opportunities for economically significant results. This sounds trite - and it is. But every analysis of actual allocation of resources and efforts in business that I have ever seen or made showed clearly that the bulk of time, work, attention, and money first goes to problems rather than to opportunities, and, secondly, to areas where even extraordinarily successful performance will have minimal impact on results.
Peter DruckerSuccessful careers are not planned. They develop when people are prepared for opportunities because they know their strengths, their method of work, and their values. Knowing where one belongs can transform an ordinary person - hardworking and competent but otherwise mediocre - into an outstanding performer.
Peter Drucker