In the beginning of the video you hear the commentator talk about the “Rude and Smooth” crew, which was the varsity crew from 1974 and 1975 that went undefeated and were the unofficial national champions. Chapter 7 in The Amateurs is about them. (You can read part of the chapter here. Scroll down just a little more than halfway and you’ll see it.) Sports Illustrated also wrote about them in 1975 and is sometimes credited with giving them the “rude and smooth” nickname, even though it had been around before the article was written. Here’s another good article on them too from The Crimson from 2003.