Projects are done by people, for people.
People are the heart of any project, one unmotivated team member or stakeholder can blow it up. It is easy to get caught up managing scheduled, scope and budgets, and forget about the most critical piece, the human element.
Success of any project depends on the project culture - you get that right and the people in your project team will cooperate, challenge and support each other in getting the job done.
People focused project management (PFPM) does not reject the basic principles of project management. It focuses on adjusting the processes to fit the culture and behavioural responses rather than trying to adapt human nature to follow processes.