The Board of Education and District 51 officials spent part of Tuesdayâs school board meeting discussing staffing changes meant to account for a drop in enrollment. About 116 school employees have retired or resigned, according to D51. The district expects 65 of those positions will be eliminated. In doing so, it hopes to increase teacher salaries, which are about 7-10% below competing districts. Applications for the new positions will open in the coming weeks. âWe hope most of that is done this month,â Diana Sirko, District 51 Superintendent said. âAmbiguity is very hard in situations like these.â Enrollment in District 51 was down about 900 students, according to a letter Sirko sent to district staff, and officials expect about half of that number to return.