Before instituting any new selection criteria for admission to principal preparation programs, the author considers several factors that are likely to interact with admission criteria. These include the impact on program enrollment, effects on applicants' choices in the marketplace, benefits likely to accrue from any new measures vis-a-vis faculty effort, and the alignment of proposed criteria with the program's purposes and desired outcomes. Where market forces and organizational incentives dictate the interplay between the size of the applicant pool and the need to generate program revenues, faculty should consider how effective the increased processes or higher standards are likely to be. As some have pointed out, increasing the size of the applicant pool is likely to have more beneficial effects on capturing successful students than is a change in entrance requirements.