#2 says it all
Lack of commitment from the organisation towards PM shows itself pretty commonly, all the others are to lesser or greater extents subsets of that. As the PM, it's part of the role to educate the organisation into committing itself; no mean feat at times.
Talking of lack of commitment, we get only 1 PM article on here every couple of weeks, many of them are pretty lame too, and this one's a repeat. The cheek...