Three consultants, and every one of them senior.
Most consulting firms staff a project with one partner who sells it and a bench of juniors who deliver it, billed at rates that assume you are getting the partner’s time. Winslow runs the other way. The person scoping the work is one of the three people who actually does it.
That caps how many projects run at once, and it is deliberate. A firm of three cannot take on twelve engagements and still be in the room for each of them, so we do not try to.