I would somehow fix software engineering training so that people understood the vast corpus of techniques and approaches that have been tried, what the pros and

I would somehow fix software engineering training so that people understood the vast corpus of techniques and approaches that have been tried, what the pros and cons of them were, and what the reactions to those issues were. Less on the theoretical algorithmic level, but on the practical and implementation level. We should not be rewriting and adopting a slightly better but incompatible version of make every five years, or waffling between SQL and NoSQL, or churning back and forth between slightly different versions of MVC paradigms. Or going from tables to div-tables to flow layouts to css-grid.