For answers to your questions, you can do some google searches on William Straus and Neil Howe, and some of their tomes of generational research:
The Fourth Turning (my #1 recommendation for anyone who might accidently jump into a discussion about generations)
Generations
Millenials Rising
do not communicate well (either written or verbal)
do not respond well to structure or criticism
do not think critically
have not had high school or college work experiences
At the lower grades, government schools have failed to teach the basics.
At the higher grades government school have taught students what to think as opposed to how to think.
Parents have not taught their children respect for authority and the value of work.
Some studies have shown that many will struggle over the life of their careers, because the parents of the next "group" will not have made the same mistakes this group of parents did.