These skills are in concert with the nine principles of direct supervision: effective control, effective supervision, competent staff, safety of staff and inmates, manageable and cost-effective operations, effective communication, classification and orientation, justice and fairness, and ownership of operations. Together, these principles and skills demonstrate how the role of the jail supervisor is changing. Knowing the audience is probably the most critical component of communication. Other crucial skills are to understand and use the audience's preferred style. Improving relationships with supervisors and coworkers can also improve productivity. Supervisors should be sensitive to input from both supervisors and subordinates and when scheduling activities. Problem-solving and decisionmaking skills are needed for dealing with unique or different situations. Leadership involves motivating personnel, setting the appropriate tone, empowering workers, and making a shared vision the authority for action. Supervisors must also know inmates' rights and privileges and be able to explain them to subordinates. Reading corrections publications and keeping up with new technologies and initiatives are ways to maintain professional knowledge and help the supervisor prepare staff for changes.