Fun thought experiment is to think what would happen if you told ____s to replace ____s. What would happen if you took programmers and told them to fill the ro

Fun thought experiment is to think what would happen if you told ____s to replace ____s. What would happen if you took programmers and told them to fill the roles of teachers? What would happen if you took teachers and told them to replace programmers? What would happen if you took policemen and told them to manage portfolios? What would happen if you took nurses and told them to replace lawyers? In some cases, everything would grind to a halt. In others, things would rattle on but perhaps in a suboptimal manner. I suppose there's a few variables like training time, and whether a job has some sort of 'coasting' option, eg. portfolio managers could just buy the index and come out OK.