Where Matt has used the word collaboration, I have often spoken in terms of "cross-pollenization" along the lines Jeff Mingay describes of the interworkings of the "boys" between Coore and Crenshaw, Doak, Hanse, teams and the players, Whitman, Axeland, Proctor, Bradley, Drella, Schneider, Duncan, and who all I am leaving out...
Sure the main designer archies names are on the project result, but I think a lot of detail and last minute designing happens from the seat of a machine being operated by a clever fellow, or from the operation of a Tennessee back hoe with some sweat from the brow of that worker. How many of the fine but unique details that you notice in a course design or specific features are the result of one of these construction-collaborators using a bit more creativity than was on the original plan drawing? Collaboration and cross pollenization happens in the field between motivated people that want to create and get something done right. There are collaborations on paper for marketing and credibility sake, and collaborations to get something truly great done on the ground.