The majority of school districts place speech pathologists based on enrollment figures from previous years, seniority, and preferences of current employees. When a district is interviewing, they typically are choosing someone for an anticipated vacancy. This can change due to staff availability, requests for transfer, and enrollment changes. Although they may describe a specific position in the district, it is not unusual for needs to change especially over the summer. Generally, a district contract is for a full school year, and is to serve the district not a specific school.