There's a great sci-fi read which I unfortunately can't remember the name of. In the book us humans who are generalists meet an alien race that's subdivided be

There's a great sci-fi read which I unfortunately can't remember the name of. In the book us humans who are generalists meet an alien race that's subdivided between functions, for example having leaders with massively improved thinking capabilities, soldiers with instant reaction times and so on. It does really well to show that generalists can be great at a lot of things, but extremely inferior when measured against a single category.