Rethinking accountability in education: how should who hold whom accountable for what?

According to this paper, our concept of educational accountability is a vestige of the industrial model of education: At age five, the raw materials (i.e. the children) are delivered to the plant door by their parents; after thirteen years, they emerge, at high-school graduation, as finished products. The teachers are the production workers, the principals are the shop foremen, and the superintendents are the plant mangers. And if their products aren't up to our standards, someone in the production process should be held accountable. But why not hold parents accountable? Why not hold students accountable? Why not hold legislators, civic leaders, citizens, and taxpayers accountable? Why not discard as obsolete our linear, uni-directional, hierarchical concept of accountability and replace it with a web of mutual and collective responsibility, in which each of us accepts that we all have a responsibility for improving education?