(True North pgs, Inc.) has long proposed getting a stamp for every documented plan or schedule that says "Warning: This is NOT an accurate representation of how the project will unfold." Every really experienced project manager knows this -- yet somewhere in the chain of communication, this information gets lost -- leaving managers and executives expecting a level of predictability and certainty that is unwarranted.

Exactly again.  You can only outsource the predictable projects.  Thanks to Hal Macomber for this post; it's a quote from Amy Schwab to a discussion group.  It seems like everything that I'm reading tonight is in the same vein.  'Course I am catching up on my project management blogs ;-)