You will often hear people say that “there is no Silver Bullet“. And this is generally true. Such miracles tend not to happen. What you can say, though, is that there are many situations that would be significantly improved by Silver and Bullets.
It is hard to see how getting rid of useless people and paying a little more for good people can’t help. Not necessarily a palatable option but quote it to people seeking miracles. It might shut them up.