Piecemeal, perhaps, but I wonder if this would scale. A whole lot of the HR problems that things like degrees and certifications solve are problems that happen

Piecemeal, perhaps, but I wonder if this would scale. A whole lot of the HR problems that things like degrees and certifications solve are problems that happen at scale. If you suddenly drop the licensing requirements for teaching, you'd now have a new job available to anyone in the job market that would start attracting different profiles of people than you will get when emergency hiring teachers. Also emergency hired teachers probably come in via social networks of existing teachers, parents, etc.