Working software every 2-4 weeks, not a dramatic reveal in month six.
The next most valuable thing, always at the top, reviewed with you rather than at you.
Standups and demos you are invited to, because surprises are the most expensive part of any build.
Your input collected at the point where it still changes the outcome instead of the invoice.
Strategy, design and engineering in the same room from day one, not handed off in stages.
Ship small, ship often, and sleep through launch night.
