It's a decent read. A lot of what is in the book could be said of American industry in general as it declined in the face of rising imports. Schwinn was very innovative early on, but they eventually came to rely on anti-competitive practices and lobbying for tariffs to combat competition from imports, rather than innovating as greatly as previously.
In some ways, it is amazing they lasted as long as they did, given they initially rejected the Sting Ray concept as well as the 10 speed concept. It seems like by the 1960s, the people working with Schwinn in the field were more innovative than HQ. If I remember, a local guy out in CA first came up with the Sting Ray/Krate concept type of bike in response to customizations kids were doing. Guys out in CA also pushed Schwinn on the 10-speed in the 1960s when they started adult touring clubs similar to those in Europe. You can't live like that for too long, and Schwinn HQ missed big when it came to the early days of the mountain bike and building quality touring bikes for adults by the 1970s.