These shortages would do the most harm to disadvantaged schools attempting to compete for the limited supply of teachers. (showmeinstitute.org)
The problem with this is that when there is a reduced supply of teachers it costs money to find them and to cover the risk that the school won't be happy with them. (schoolsweek.co.uk)
With an inadequate statewide supply of teachers, districts must compete with each other to staff their classrooms. (learningpolicyinstitute.org)