I'm working as a PM in a internal IT-department for a global comapny with ~100 000 employees. We are running a a lot of projects....but...
One of the misstakes that I see internally is that we often identify the external risks to the project. We put impact and probability on them and report the risks to the Steering Committee...by the book.
But we often miss out on the most important: To be in controll of the activities and the plan. With out a proper WBS (or similiar) you will not be able to connect the risks to the activities in the project and then you actually do not know if the risks will influence you or not.
The plan is so important!!!
/ThePM
http://www.theitcompany.blogspot.com/
About project management and leadership