Full Idea
All varieties of functionalism can be viewed as 'homuncular' functionalism of one grain size or another.
Clarification
A 'homunculus' is a little man within the mind
Gist of Idea
All functionalism is 'homuncular', of one grain size or another
Source
Daniel C. Dennett (Consciousness Explained [1991], 9.2)
Book Reference
Dennett,Daniel C.: 'Consciousness Explained' [Penguin 1993], p.262
A Reaction
This seems right, as any huge and complex mechanism (like a moon rocket) will be made up of some main systems, then sub-systems, then sub-sub-sub.... This assumes that there are one or two overarching purposes, which there are in people.