IMHO The Who really poured their hearts into each song. You can hear it in all of them. Listen to such less-produced ones like “Trick of The Light”, “A Legal Matter”, and “I’m a Boy” as just examples of how they poured their hearts into it.
One of my absolute favorite Who songs.
Don't know why it wasn't ever released as a single (probably because Entwistle penned it).
Anyways, it just rocks.