I get what you’re saying, but the point of raising the pay is to push out the middling underperformers or motivate them to change. These are the same people who believe that lottery tickets are essentially investments because you gotta spend money to make money.
When you raise your wages across the board, you expand your hiring pool and begin attracting people who have the aptitude to be a teacher and the aspiration to get paid a decent wage. Once that starts happening and you get better performing employees, the ones who want to keep their jobs need to step up if they have been underperforming. If they don’t, you replace them, plain and simple.
Do it. I fucking dare you. It’ll be fun to watch a media powerhouse and a douche meth lab burn each other down.