The influencer marketing industry has a measurement problem. Most platforms track reach, views, and engagement, because those numbers are large and easy to report. They are also almost entirely disconnected from whether someone bought your product.
We measure differently. Every creator campaign we run is tagged with UTM links, unique promo codes, and, for brick and mortar brands, foot traffic pixels. When the weekly report lands in your inbox, it tells you which creator drove which sale. Not which post got the most likes.
If your current agency can't show you that, you are paying for noise.