Earlier quoted context omitted.
But what is the real-life practical alternative? It is makes lovely and invigorating fiction to imagine men who have learned to competently conn a ship, design a building, write a sonnet, balance accounts, butcher a hog, set a bone, and program a 1973-era computer. But life is short and any art takes long to learn to sufficient depth that you can solve dynamic complex problems. How many more men would have died if Ei…
I think these are excellent things to keep in mind, but the vast majority of real life is not D-Day or crash landing in the Hudson. I'd go so far as to say that most people hardly ever even spend any time solving "dynamic complex problems." People being really, really good at stuff is important, but I don't think it follows that everyone should only do one thing. I have a hunch that Eisenhower himself was probably a…
Further supporting your point, that is perhaps why they are called “Generals”, IE: they have mastered enough areas that they are now generalists able to approach many subject areas and problem sets.