This is the article most agencies avoid writing, because the honest answer is that a lot depends on you.
An agency can put the right people on your calendar. What happens after that is a partnership. Here are the five things our best clients at Secret Agents do.
Speed to lead is everything. If a lead waits hours to hear from you, someone else already called them. The first business to respond usually wins the conversation.
Call within minutes. If your team can't, let an AI voice agent call back in seconds, qualify the lead and book the appointment for you.
Scripts, ads and landing pages need your sign off. When approvals take a week, your campaign sits still while your competitors keep running.
Set a turnaround you can keep, ideally a day, and stick to it. Approvals are also how fresh creative gets out before the current winning ad wears out.
One person on your team who owns the leads, works the calendar and talks to the agency. When everyone owns the leads, nobody does, and leads fall through the cracks between people who each assumed someone else called.
This is the big one. Cheap leads are easy. Leads that turn into revenue are the goal.
When you tell your agency which leads became customers and which were junk, it can aim the ads at more of the good ones. Without that feedback, the agency is optimizing for cost per lead, which can quietly fill your calendar with people who never buy.
In our employment law case study, every signed case is matched to a lead using the firm's own monthly reports. That's why we can say the ads produced 8 of the firm's 11 new cases in September 2026, at about $187 per signed case. The firm's reporting made that measurable.
The first weeks of a campaign are for testing hooks, audiences and offers. Some ads will lose. That's how you find the ones that win.
Judging a campaign on week one is like judging a new hire on their first morning. Agree up front on what success looks like and how long the test runs, then hold everyone to it.
A partnership runs both ways. Hold your agency to these:
In our experience, campaigns rarely fail because of one bad ad. They fail because leads sit uncalled, approvals stall for weeks, nobody tracks which leads closed, or the campaign gets cancelled before the test is done. All four are fixable on day one.
Respond to leads within minutes, approve creative quickly, name one person to own the leads, report which leads became customers and give the campaign enough time to test.
The most common reasons are slow lead follow up, slow approvals, no feedback on which leads closed and judging the campaign before testing is complete.
Clear reporting on leads, appointments and sales, quick changes when results slip, fresh creative on a regular schedule and honesty about problems outside the ads.
Which leads became customers, which were poor fits and why, your close rate and what a customer is worth to you. That lets the agency aim the ads at more of your best buyers.
See real numbers in our case studies, or request a quote and we'll map how we'd do this for your business.
Secret Agents (secretagents.co) is a growth agency for high-performing companies. We generate inbound leads and booked appointments using AI video ads, AI voice agents and authority content: 50,000+ leads generated, 7,000+ ads created, 43+ industries. ---
Results depend on market, offer, budget and sales process and are not guaranteed.
