@goofyfoot - Most of what the Who did was a departure from what they did earlier. 'Tommy' was a departure from 'My Generation', for example. Bands that never depart from a formula will eventually bore their audience as well as themselves.
I actually enjoyed 'Who Are You' more than 'Quadrophenia', especially the title track and John Entwistle's numbers. But I always like Entwistle songs! 👍