"Admission standards" refers to the requirements or criteria that someone or something must meet in order to be accepted into a particular place or program, such as a school, college, job, or organization. Full definition
However, raising admission standards can be costly in other ways, by eliminating from the pipeline anyone who could be discovered as effective later. (gse.harvard.edu)
Therefore, a second change would combine higher admission standards with better training. (brookings.edu)