Start with shared goals and a clear way to judge success. Check that tracking...

https://www.zekagraphic.com/how-to-get-the-most-from-a-google-ads-agency

Start with shared goals and a clear way to judge success. Check that tracking works before spend grows. Review lead quality, not only lead counts. Run structured tests on ads, terms, and pages, then use what you learn to guide the next change each time.