[dredmorbius]

I've got a memory of business organisation being classified into "D" type and "M" type organisations.

Sloan's model of a corporation comprised of largely autonomous divisions, with a central administrative department (legal, bookkeping, taxes, some marketing and the like) was the "new style" business of the 1940s -- 1960s.

The older monolithic structure was the "M" type.

Problem being that I can't find these terms readily (single-character terms tend to be search-averse). Do these ring a bell with anyone?