Agile and PMBOK
Agile methodologies do not eliminate conventional project management methodologies, but complement and change them.
Long term planning, dependency tracking, Gantt visualizations are perfectly rounded out with velocity tracking and frequent revisioning.
Your development team can concentrate on the immediate issues and still keep your project manager updated.
Your project manager has hard data early in the project to know how much will be done by the end of it.
The base elements stay the same, work breakdown and time estimates still happen, but deathmarches and looming deadlines are smaller and less frequent.