I kinda wish Nintendo would do the Sega thing and name their teams. Since there's little to no deviation in the production roster on each team, it would help to differentiate a little better. Forces them to spread the credit around where it's due for some of their successes.
I think the Iwata's Asks are sort of spilling the beans (and if you look at enough game credits) at the complicated but organized roster of developers inside of Nintendo. At some point they will have to stop painting the illusion of Miyamoto magic, and recognize the large pool of young talent that has been developing Nintendo games for the past 20 years.
Theres also the Nintendo SPD team. Which is even more
complicated.
SPD Group 1 - 2D Metroid Games, WarioWare, Kiki Trick, Rhythm Heave, Tomodachi Collection
SPD Group 2 - Nintendo Puzzle Games (Tetris, Dr. Mario, Yoshi's Cookie), Style Savvy
SPD Group 3 - Produces and collaborates on western first-party games
SPD Group 4 - Produces and collaborastes on japanese first-party games outside of the main teams
And Sofware Development Design (which is a department in the SPD division?? of Nintendo)
Who develops all the new age games like Brain Age, English Training, Wii Channels, Photo Dojo, DSiWare apps,