There are a whole set of disciplines which are effectively systems-management knowledge or training (or to use older terms: science and arts or technology). Business administration, government administration, clerical studies (in the sense of religion), military science. These are domains of large, complex, and idiosyncratic systems -- both amongst disciplines and within them -- in which there are both general and specific sets of knowledge.
There are elements of business administration which are fairly generalised, and those which are specific to given organisations. Keep in mind that in business management as with technology, there's an advantage for large incumbents (think, early 20th century, railroads, chemical industry (especially DuPont), oil, steelmaking, automobile manufacturing, and a few major retail ventures) of stamping a business school with your own process, methods, and models, such that graduates are prepared to enter your own rather than competitors' workforces. An early form of the mindshare battle.