I would say that almost all of the non-specific things hold true for every generation. It doesn't matter if you were born in 1920 or 1990, young people come into a situation with a different mindset than the previous generation. Without the shackles of "that's how it always has been", of course they'll be able to better see ways to improve efficiency. Of course they'll tell you if they're unhappy (because they're not used to being unhappy about it yet).
It doesn't have to be "how to talk to millenials", it's "how to talk to young people". Let's wait for the repost in 20 years and see how much things change.
Exactly. From an evolutionary viewpoint, the next generation _has_ to act differently. That's (reportedly) how the human race spread so far across the globe - youths who were not satisfied with their parents' place went somewhere else, finally ending up in the far north.
It doesn't have to be "how to talk to millenials", it's "how to talk to young people". Let's wait for the repost in 20 years and see how much things change.