In many different workplaces, mostly fast food restaurants, managers just get promoted to their jobs based on the fact that they were able to do their entry level job well over the years. It is assumed that those that can exceed expectations preparing a burger, or taking a customer’s order are ready to take on the task of being a leader.

Source: http://www.plymouthherald.co.uk/Takeaway-team-s-Olympic-service/story-16170851-detail/story.html

In some cases, often by luck, these workers do possess the skills necessary to maintain a group of individuals, but in reality, most managers lack the proper qualifications to be seen as a leader. Most managers do not respond to situations well and this can affect the overall efficiency of the business. Managers are meant to be able to oversee the overall brand and operations of the business, and this is not a useless task. Though anyone can go through training once given the promotion, I truly believe that there is a certain type of person that a manager ought to be, and in order for a business to run smoothly, there must be a proper hiring process to ensure that managers can be truly deemed as leaders.

reference: http://www.theglobeandmail.com/report-on-business/careers/leadership-lab/why-are-so-many-managers-useless-as-leaders/article20864299/