Clearly, some people with the title and/or position of Project Manager really do nothing that adds value to the project. Remember the 'Peter Principle' from the 70s. Real project managers with the proper experiences and skills not only add value to a project, they help make it work correctly, get it done on time and within budget and make sure that it is maintainable once it is in production. The skillset required varies, but includes many of the elements required for continued success of the project. Organization and documentation are often overlooked by 'Peter Priciple' project managers, as are many other skill sets that allow real project managers to assist in getting the job done correctly the first time and within budget. I have been a real project manager for many years and I still have the technical skills to do more than the paperwork involved. Taking failing projects and turning them into successful projects requires a set of skills that is very large. As a consultant,I frequently am asked to get involved after the disaster has occured and to turn it into a success. I have done this many times and each time the disaster aspect could be laid at the feet of a person who held the title, but did not have the proper skills. There are many storys out there about both 'Peter Principle' project managers and their disasters as well as real Project Managers who do know what they are doing and their own skill set allowing the project to succeed.