Leadership and management are needed in order to bring change to a situation. In order to be a good manager leadership skills are a requirement. Managers have an official title that makes them responsible for a variety of things that are structured based. As you mentioned above planning, organizing or staffing are some of the things that they are responsible for so basically their job requires them to meet deadlines and create policies. They also oversee a group of people that they are responsible for, this is where the leadership component comes into place. In order for manager to bring about change they need to have leadership components in order to be able to lead a team to meet the deadlines and follow the policies effectively. A manager without leadership skills will not thrive and will always have conflict when working on a task with multiple individuals.