What Innovations Did The USAF C-141 Starlifter Bring To Military Airlifts?

It could be said that the C-130 Hercules. C-17 Globemaster, C-5 Galaxy, and C-141 Starlifter are the “Fab Four” of post-WWII US Air Force airlifters (transport aircraft). The C-141 is the only member of that foursome that’s already fully retired.