If you do go with highly paid teachers, then you need to do it like Finland where teaching school is equivalent to law school or medical school in terms of selectivity. Just raising salaries wouldn’t help much except to piss off taxpayers even more.
Besides, the way things are trending, it almost borders on child neglect to send your kid to public school anymore. I only know people making the median income or lower, and anyone who can sends their kids to private school or home schools. It’s getting very close to being socially unacceptable to just send your kid to their local public school. Even parents who do settle for public school make a special effort to move to an area with the best schools. This kind of selection should be creating a serious education gap.
To get back to what Clinton is proposing though, this is just standard Democratic love of thinking you can fix any problem if you a) spend enough money on it or b) put the “best and brightest” minds on it. Problem is, when dealing with human behavior, the complexities are too great for even the smartest people to figure it out. Schooling is an issue where there are just too many potential points of failure: the parents could suck, the kids could just be completely disinterested, the teachers might suck at their jobs, the schools could be unsafe, the kids could be hungry or underdeveloped, the curriculum might be poorly thought out, the curriculum might be too undemanding, the curriculum might put too much pressure on. Trillions of dollars in funding increases and the best brains in the world haven’t been able to solve this problem, and Clinton thinks she can fix all the failing schools with smart people?