i don't think that the teachers suck so much as the game has changed when it comes to education. if they can't get the backing of parents or certain admin, what's the point. my wife is a school psych, and a lot of her coworkers are great teacher, who legit care about the kids. Whether or not they can teach they way they want is the question for me.
even years ago we'd see teachers hang on because of the ease of the job and money. my wife has an aunt that i think taught kindergarten or first grade, and was making around 100k a year. She just lingered around because why not? now we see nys teachers bailing the moment they hit their 30 years. not just retiring, but running in the other direction, with no desire to even sub. add in the lowered retirement tier system in ny, and it will make young kids think about going into teaching.