A while ago a colleague doing his thesis on EA in the work place brought this to my attention.
It re-enforces the decision making and planning modes but in essence the low down of what was said was that architects and analysts operate in the analytical space and hence need to codify a business. They therefore often use a mechanistic metaphor to describe the business - an engine, a car, building blocks.
However senior stakeholders operate in the institutive space and they prefer the use of the organic metaphor. The business is like a cloud or a tree always growing and changing shape.
I'll try and dig up the paper he wrote where he tested this theory in a major bank. If you have access to it please add it in here