The classic US agency is excellent and expensive, and the senior people who won your account rarely stay on it. The classic offshore shop is cheap and junior. Founders kept getting forced to choose between depth and budget.
An extended team removes the trade. Named senior operators work in your tools and standups, own outcomes, and cost less because of where they sit, not because of what they are. More of every dollar reaches the actual work.
It is the difference between renting hours and building capacity. Once a founder feels that difference, they rarely go back.