Oh, there's so much that would be done with such a broad brush - and part of it could be down to the educational system, which was certainly woefully inadequate to deal with what was needed. (It also helps describe some of the predispositions for career choices, reinforcement of the class system, and all that.) While it would have been better to start with it earlier, going towards comprehensive education from the get-go (instead of waiting until the '60s) would have helped quite a long way, along with more love for the polytechnics as a permanent system of post-sec education and greater use of upper-secondary technical+vocational education. Even then, that doesn't touch the myriad of problems in the educational system that needed to be resolved pronto, even post-war (and the earlier, the better), and other things like the perilous state of the "public" (= private) schools and their possible merger into the secondary system (possibly as an interim Scottish-style junior sec/senior sec division of the comprehensive schools with delayed selection).