It's hardly revolutionary; good project management ensures that projects run smoothly. Clients are happy. The team does a good job. Some newer companies haved turned their backs on this old fashioned project management nonsense. My company is one of those. We're expected to take responsibility for our own work to such an extent that a project manager just isn't need.
Fine, in theory. In practice I am three quarters of the way towards the deadline of an, as yet, unscoped, unbriefed, undefined project. I'm hoping that on the day before the deadline I will finally get a brief. In the meantime the deadline still stands; the writer (me) has to pick up the work.