I don't entirely understand the fetishism of expertise among a certain segment of society. Don't you realize that most of all teachers and other educational institutions are staffed by those who would be considered nominally experts? And this has even been taken to the next level by widespread adherence to a national curriculum (common core), again composed by even greater ostensible experts. And all of this has been complimented by the 5th highest spending per student in the world. And the result? Educational outcomes are falling off a cliff.
Obviously this isn't to say that anti-expertise is the answer, but rather that motivated people of reasonable intelligence and objectivity, regardless of expertise, are a [measurably] excellent source of value in just about everything. And, by contrast, expertise itself does not guarantee good results nor effective performance, especially in the context of other issues that might otherwise impair performance like large class sizes, minimal motivation, poor work environment, etc.
[1] - https://www.researchgate.net/publication/291335232_The_Effec...