No relaying questions through the founder and no losing the detail in translation. The person with the problem describes the problem.
Who ran what, what it cost, and what came back. Credit spend stops being a mystery line on an invoice.
A ceiling per person, so an enthusiastic new hire cannot spend the whole month in an afternoon.
Who can run actions, who can only read, and who can invite. Enforced in the data layer, not by hiding buttons.
Start on Team, invite the people who need it, and set limits if you want them.