04 TWO PEOPLE. ALWAYS.
Every engagement is staffed with two practitioners. Complex work gets two seniors. Lower-stakes work gets a senior and a junior. This is not negotiable, and not just for your benefit.
There is a version of AI-augmented consulting where the human disappears entirely and what ships is fast, cheap, and indistinguishable from everything else. We've seen it. You've probably seen it. The two-person model is our insurance policy against becoming that. The senior brings taste and judgment built over years. The junior is learning it in real time. That judgment is what keeps the output from being slop, and keeping it sharp requires a human in the room who can tell the difference. Keeping the pipeline of practitioners who can do that well is how this industry survives the next decade intact.
You're paying for both. You're getting both. That's the model.