Lab managers usually start out working at the bench, as a technician or scientist, and spend many years there. Over time, they may become more specialized in a particular technique, or may learn a broad variety of techniques. After gaining sufficient experience, they will be promoted to a lead or supervisory position—assigning tasks, offering guidance, and managing day-to-day activities such as meetings, attendance management, performance reviews, and so on. Since supervisors are generally promoted from within, instead of being hired from outside, they typically have a relationship with and the respect of those they supervise. Over time, they will acquire greater and more administrative responsibilities, including hiring, firing, budgeting, directing work in line with long-term goals, and ensuring the success of the organization.