Christopher Hawkins has another great article online talking about how professionalism means saying "No" sometimes.
This article is about sometimes having to say no to maintain a release schedule. Christopher talks about his experience with a client, and how it played out. Also, he cites Bill Gates in relation to the recent well-publicized Longhorn cuts. Only time will tell how that plays out.
My opinion: People dont remember if you ship late. They do, however, remember if you ship crap.