How do I manage discovery in huge, complicated cases?

You can run a normal discovery now, and it is the big matters, the disputes, the sheer volume, that bury you. That is not a sign you are out of your depth. It is the honest difference between managing a stream and managing a flood. Scale demands systems, not just effort, and effort alone is what is drowning you. When the volume is enormous, working harder inside the pile does not work; only structure does. The lawyers who handle massive discovery survive on process: clear categories, tracked deadlines, delegated pieces, and a way to know at a glance what is done and what is not. They are not smarter. They have built a machine so they do not hold it all in their head. So before the next large matter buries you, spend the first hours building the system rather than diving in: one tracker of every deadline and task, and a plan for who owns what. It feels like a delay when you are anxious to start. It is the only thing that keeps the scale from crushing you later.