Who Replaces the PM-Designer-Engineer Trio?

The PM. The designer. The engineer. For a generation that was the irreducible trio behind every product — three people, three crafts, three handoffs. AI is collapsing it into one role: the AI product builder. Not by turning everyone into a shallow generalist, but the opposite — by letting a deep specialist finally own the whole thing. The trio doesn't vanish; it survives as flavours of the same role, each builder still anchored in the craft they came from. The interesting question isn't "can one person do it all now?" It's "what shape should the team be when they can?"