I have written a post titled Creating Added Value for the Customer is Bad Project Management which talks about the setbacks on performing tasks which are out of scope.
The picture below takes it too much. I agree that things outside of scope should not be performed but when the quality of work is compromised because of certain roadblocks, the project should not proceed and alert the client about certain issues. Proceeding to take additional actions should then be agreed upon for the overall quality of the results.
Found via Seth Godin.
People get absorbed in work and before they realize their current situation…